The current price on Amazon ($99) is less than the cost of the other version of this bundle–giving you the authentic product for less.  This bundle comes with the game, a guitar, a drumset, and a mic.
The newer versions of Rockband let you import your previously purchased music over.  In addition to digital purchases, this includes importing Rockband 3.  You cannot import other editions of Rockband yet, but reportedly, they are working on it.
Supposedly, this version of Rockband 4 allows more creativity when playing. Â You can vocalize/improvize more without getting dinged for it.
The features (from the Amazon listing) include:
- Start a Band. Rock the World – Rock Band 4 delivers the ecstatic rush of a live band performance like never before. Grab some friends and live out your rock fantasies on stage, under the lights and in front of a roaring crowd.
- The Most Music Available – Over 60 new tracks from rock’s biggest names and upcoming acts. More than 1,500 songs available for download through the in-game Rock Band Music Store. Freely import your previously purchased Rock Band music library into RB4
- Add your Personal Signature – Put a unique spin on your favorite tracks with Freestyle Guitar Solos, Dynamic Drum Fills and Vocal Improvisation
- Keep the Party Going – New “Shows” mode energizes your Rock Band multiplayer experience. Build multi-song sets, vote for the next song, change difficulty levels and drop in or out. All on-the-fly in one of the best party games available
- Bundle includes the standard edition of Rock Band 4 for Xbox One, Wireless Fender Stratocaster Guitar, Wireless Drum Kit, and Stage-Grade USB Microphone.
I think this is a great price and I personally don’t have this for Xbox One yet. Â I get a lot of use out of my Xbox 360 Rockband and probably have played through Sister Christian about 200 times.