Personally I'm happy with the Boxset releases as they are. There are a few compression issues-but really only noticeable on a select few songs across the 1976-1982 box. Other than that, all the albums sound incredible to me-especially in 5.1 surround! I also enjoyed all the bonus material. I'm not a big collector of unofficial releases, so for me that was the first time seeing about 80% of all that. IMO there would be no need to re-release remasters of all the albums. In fact, IIRC Nick Davis even said himself their intent was for these to be the final "definitive versions" of the band's material. (Odd, considering the '94 remasters were also called "definitive" LOL!)
Anyway, for those that don't have them yet-I must say I've seen them offered still on sites like Amazon.com and such. The stores may not be stocking them anymore, but they're still out there to be found!