I have a UV777 and wouldn't mind getting a backup 7 string, maybe a hardtail. I can't figure out what exactly I'd be sacrificing quality-wise with the other models I'm thinking of. I see the K7 is roughly comparable at $300 less than the UV777. The RG1527 and the RG7321 with 2 pickups, however, cost so much less than the UV777 that the lack of an inlay, one less pickup, or no trem can't all account for the $1000 to $1500 price difference. All I can think of is that the UV777 meets some higher standard in its production or quality control. Aside from aesthetics and one less pickup, what does the RG7321 lack quality-wise compared to the UV777?