Shrug. Horses for courses.
Had I not got one through EB, and then seen the videos I've seen (and probably the ones I've not bothered watching), and particularly if I were in the capitals and could maybe see one in person... I dunno, I might splash out.
The thing is, I've become aware over the last decade or so that I have quite a bit of disposable money, and that I'm pretty well off. Not rich (few people think of themselves as rich when they are, but I have a very firm idea of what rich is and I'm not there), but comfortable, and better off than a lot of people. I grabbed a few rather expensive toys from another member on ebay the last couple of weeks, at prices I might not have gone to a couple of years ago. I figured I wanted those, and they seem uncommon, so let's just do it. And even there I ran into a limit for myself, and a couple of things got away at prices I wasn't willing to match, which kinda surprised me, because I generally operate these days on the principle of "really, actually, want it? Then whatever it takes".
So I reckon (finally getting to the point here) that if there are people who are willing to spend even more than I am, and if I could give serious thought to paying the prices for a second-hand Unicron, then there will definitely be others out there with more means and more willingness to spend for the things, and who would think it worth the price.