I've gotten a few for gifts for people. They use small/thin tubes, where the old school USA ones, are nice big/thick tubes. The quality of the sign is not as good as the ones you can get from made in the USA, but as long as you understand that. They are an awesome way to get a custom sign in a decent price range.

The first sign I ordered was a Mich golden, a section of white lettering was an off yellow/white. I contacted and sent a picture and they sent me a replacement section. That website/store is gone now, but they are all usually similar. I think I used NeonSign USA this last one.

fat tire...with the bike?

I see them around my parts decently frequently. So usually you'll find them at the local auction houses, CL and FB market. I bought all my neons from a mix of those, but the local auctions usually have ones pulled from a bar. And sell for $50-150. If you just keep your eyes open and searching, you'll find one in 3-6 months. It is kind of like finding your first pinball. Seems to take forever, then you can't stop finding them