Okay, so that's a KVANT unit then. I wasn't aware that Pangolin was acting as a distributor for them (or maybe owns them?). Despite Pangolin's USA office being less than an hour from where I live, I've never dropped in for a demo and it's been a few years since I've made it to LDI to see the latest and greatest, and who owns who these days. To my understanding, KVANT is a UK company that sells worldwide (hence my ebay confusion further up). I'd imagine you can't go wrong if you buy through Pangolin directly or via one of their USA dealers, but honestly I can't tell you for sure. It's been a few years since I've last used high power lasers and I wasn't the owner of what I used. If you're serious about getting into the high power laser game I'd suggest reaching out to a dedicated community of laser specialists (Photonlexicon, etc.). Between the cost, safety, and legal concerns this isn't something to get wrong!
That said, be sure to see an in-person demo of any laser you'd like to buy. Not all lasers use the same wavelength diodes nor do they all mix colors evenly, so you'll want to be sure you're happy with the palette you'll have available to you with any given model. Given the cost of these units, a $200 plane ticket is well worth the money to be sure you buy the right thing! Good luck!