Right angle is a custom fit that does not fit all the time ---so it’s the vertical off the socket as the norm. Where that space (around the wall plug) is more universal for a functional fit.
Also, a right angle plug has to be designed in this field and then marketed. Where it would not sell as well. as people want the universal fit, for use and for resale.
To add, they can be and generally are bulky, for high end audio. Not that that they functionally have to be bulky, but that the market has turned out that way.
And when marketing a plug, makers want to be able to sell as many into a market as possible, with the given level of investment (cost overall and per item) and universal application (sales, stocking, and marketing of the given item) --- so straight out plug types it is.
Basically there is a strong level of market forces in these decisions. Sales might 10 to one or higher in favor of the universal fit. This...in a small market, with the overhead in inventory and costs for the 10x less sales items being larger than in a more successful/average/universal (number of units moved) market.
Costs increases high enough that they have to be shared with the rest of the items that a given manufacturer might make... and this situation...slightly increases the costs which cascades into loss of margin and loss of competitiveness with other makers in their own area of product. Or they simply dump it all on the special right angled connector and it has a retail that is ~20-50% higher than the straight out one.
Then people would complain and ask why the right angled one costs so much.
Then start having an argument about how the right angle compromises the sound quality, or that their favorite bulk cable is being messed up by this connector and they can’t anally arrange the cable the way they want to and so on into an infinity of micro aggression/complaining and assessing (how does it sound, do we need to do sound quality comparisons?) the right angle connector --into a sales death.
There might even be some right angled ones that dies that sales death, already. And be bitched about the whole way down.
Then ask for one at a 45 degree angle in both plains, or, or or....maybe a pivoting unit..or...
One of those "ain’t no winnin’ with all the losin’ goin’ on..." Scenarios.
People be people and the world is what it is.
Also, a right angle plug has to be designed in this field and then marketed. Where it would not sell as well. as people want the universal fit, for use and for resale.
To add, they can be and generally are bulky, for high end audio. Not that that they functionally have to be bulky, but that the market has turned out that way.
And when marketing a plug, makers want to be able to sell as many into a market as possible, with the given level of investment (cost overall and per item) and universal application (sales, stocking, and marketing of the given item) --- so straight out plug types it is.
Basically there is a strong level of market forces in these decisions. Sales might 10 to one or higher in favor of the universal fit. This...in a small market, with the overhead in inventory and costs for the 10x less sales items being larger than in a more successful/average/universal (number of units moved) market.
Costs increases high enough that they have to be shared with the rest of the items that a given manufacturer might make... and this situation...slightly increases the costs which cascades into loss of margin and loss of competitiveness with other makers in their own area of product. Or they simply dump it all on the special right angled connector and it has a retail that is ~20-50% higher than the straight out one.
Then people would complain and ask why the right angled one costs so much.
Then start having an argument about how the right angle compromises the sound quality, or that their favorite bulk cable is being messed up by this connector and they can’t anally arrange the cable the way they want to and so on into an infinity of micro aggression/complaining and assessing (how does it sound, do we need to do sound quality comparisons?) the right angle connector --into a sales death.
There might even be some right angled ones that dies that sales death, already. And be bitched about the whole way down.
Then ask for one at a 45 degree angle in both plains, or, or or....maybe a pivoting unit..or...
One of those "ain’t no winnin’ with all the losin’ goin’ on..." Scenarios.
People be people and the world is what it is.