When I moved on from Idler Drive TT’s to onto the use of TT’s being the DD TT design, After a short time in to the DD TT’s usage, it become apparent that I was in possession of a Complete TT with extremely accurate Speed Control for less monies that the cost required to own Off Board Speed Controllers for the owned ID TT’s.
The same is also witnessed for the Off Board Speed Controllers made available for BD TT’s, their expense to purchase is quite something, and a very decent DD TT, with accurate built in Speed Control can be acquired for not too different monies.
In terms of using Vinyl as the Source, the market for BD TT’s as the tool to replay a Vinyl LP is quite a large market, without investigation, it would be easy to assume the BD TT has the largest proportion of TT sales.
The BD TT market has running parallel, a market for devices being sold to make available improved speed control, that come come with such heft as a asking price. This to me, when such asking prices are seen for the additional devices is saddening. Having to meet such extra outlays for an improved speed control does not rest well, as BD TT's are modern as a design, surely the manufactures are able to offer the best practice speed control with supplied TT's
Low turnover of sales with a High Mark Up does seem to be the sales model for add on Speed Controllers.