I'm really glad that they are constantly doing songs for DLC on Rocksmith. Its been a while since I've played the game, and have quite a few songs to pick up when I start playing again.
However, I really hope they get rights to a lot more songs soon. Stuff from the 90s, even some softer songs would be kinda cool sometimes too. Like The Smiths or Coldplay.
Either way, I'm still glad that I bought this game right when it came out. And if they are working on a Rocksmith 2, I don't know what they'd do for that one that patches couldn't do for Rocksmith 1...
Great news regarding bass support! Someone from Ubisoft Tweeted that they just started internal testing for a bass expansion pack. Elsewhere it was stated that all existing songs in the gaem (I BELIEVE this includes DLC as well) will get bass arrangements. Details here: