Yes, decimal point issues in price. It seems with any collectible there are the big names that rightly fetch top prices. By their reputation the prices seem to inflate from there. Meanwhile, I think there are some less touted names that are a close second but at half the price. I try to find that sweet spot, but tuners are an odd commodity. The most expensive back in the day might have had cutting edge tech for that time, but it became standard or later improved on. It’s tough to disentangle the specs and prices without being an electrical engineer.
Even so, the hunt is fun.