To me, the idea of casual, hobbyist musicians or recordists buying $4000-$5000 reverbs is totally insane. I'm not saying there's no difference between reverbs, but once you get to a PCM91 or a TC M3000, which you can find used for more reasonable amounts of money, you're already so close to reverb nirvana that the only reason to spend the extra few thousand bucks is if you're A) an actual recording professional, or B) so rich that price doesn't matter.
Otherwise, any hobbyist who thinks they need to spend five grand on a single box is just in love with gear for gear's sake. I've been there myself so I know how it goes -- I spent $3,500 on a Cranesong DA converter I really didn't need, years ago, because I thought it was so cool. My recordings certainly didn't benefit noticeably from having the Cranesong in my studio and I eventually sold it. I don't buy stuff like that any more.
If you're a millionaire, or a musician/engineer making a living from tools like these, then more power to you. I'm sure if a studio guy like Paul Vnuk has certain pieces of gear in his arsenal it not only adds an important tool that he can actually use regularly, but also helps attract more business --. "ooooh, you've got a rack full of Manley and and Avalon and Empirical stuff, awesome." Otherwise I think a lot of musicians and recordists sort of kid themselves, spending more time choosing reverbs than actually, you know, recording. It's sort of like a photographer I knew who loved cameras and had a collection of great Leica and Hasselblad and Nikon cameras and lenses, a hundred grand worth of stuff at least, but who almost never actually took off the lens caps.