I don't think releasing full albums is the right way to go these days. People have VERY short attention spans. I feel like we've come full circle to where the music industry was in the 1950's, when it was all about singles. Albums didn't really become a big deal until the mid to late 1960's and beyond.
That being said...if GN'R continues releasing a couple songs every once in awhile, eventually the fans can put together an album of 8-10 songs if they wish to do so. That's cool.