I agree with your comments on the larger lathes. In my case I don’t intend to get into larger projects so the price and size of the mini lathe appealed to me. The plus it has for coil winding is a DC drive that has continously variable speed control that allows it to speed up or slow down very rapidly, necessary if you need to stop winding in a hurry.
I did look at larger lathes in local auctions etc but price and unkown condition worried me. Some looked pretty tired and may be very inaccurate or require extensive repair.
Some good information on mini lathes is available at–