I think the fretless market is a lot smaller than the fretted one, so there’s less incentive for manufacturers to get involved. I had a Revolution which was unbelievably good for under £200 and unbeatable in my opinion. I think part of the issue is that most fretless beginners tend to be experienced fretted players, so they get a cheap secondhand one, and then upgrade to something more serious if they get more involved.