The Arcade Edition will be a $15 DLC if you have SSF4. So with this deal that means you get AE for a few bucks cheaper, on top of that you get to play Street Fighter for the next 2 months instead of waiting, definitely gonna drop by the local BB to see it they have this deal.
Def YMMV. Wanted to get a copy of SSF4 for my brother a couple weeks ago and I ended up buying it from Newegg because no local store had it and I wasn't going to pay 40 bucks for it at gamestop.