I know this is an old thread BUT... I can't help noticing that the WB465 looks a lot more like an FC470 with the pointed 5 mitre bow but without all the extra D-rings and whatnot. IIRC the previous Avon versions had a blockier and blunted bow, like the CRRC 520 and brethren. Regardless I really dig it!
As for the "boat in the livingroom," I've been guilty of that more than a few times. Before I had a proper, climate-controlled shop I brought boats indoors for glue repairs and when it was too hot to work outside (pretty much all summer here). I can attest they serve as an acceptable sofa replacement provided you adjust them correctly... Assuming starboard tube is facing TV screen, inflate the starboard chambers to about half full and the port side/bow chambers to preference (about 1.5 psi works well). Now you have a 15' wide sofa with built-in legrest and at about the proper inclination for comfortable TV watching.
PS: I don't know if any of you are familiar with AIRE, a company in Idaho that makes whitewater rafts. Anyway they came out with an inflatable camp sofa a while back that's made out of the same fabric as their whitewater boats. Its pretty sweet. Every once in a while drunk/bored raft guides run them through Class III/IV whitewater...quite a sight to see!
couch surfing! - YouTube