MSB Discrete vs. Bricasti M1 SE

I started a previous thread asking for comparisons of a few $5k DACs and after many helpful responses and a bit more reflection have decided to skip the mid level and move to the top of my front end budget.  Maybe I’m mistaken, but I have found over the years that sometimes it’s less costly in the long run to just bite the bullet up front and pay once, rather than trading up in several moves.  For my system, this would be the ultimate front end.  
I know MSB costs a bit more with an additional power supply, but price is not the only factor between these two.   Because digital device improvements are coming so fast, I’m also looking at ease/quality of future firmware or hardware updates.  The Discrete is  entry level in the MSB line, which has a much higher top end than Bricasti.  Is there anything to the trickle down theory of product lines?  Thanks for any thoughts!