So my wife inadvertently got interested in Beatles Rock Band. We were given GH2 as a gift some time back but it just didn't do it for us. She has since scoffed at Rock Band and I was pretty much right up there with her. We're also annoyed by all the d-bags who sit down and try to show off in stores like Best Buy, but the other day she was in a strange mood and nobody was around. We tried it out and it's now on her wish list.


Peripherals

So I've started doing my research trying to figure out various cost things. So apparently RB1 and RB2 peripherals are different. The Special Value Edition of BRB is cheaper but has RB1 peripherals. From what I can tell the quality is generally better on the RB2 stuffs and they are wireless which is very significant to us. So pretty much aiming at RB2 bits unless someone says otherwise.


PS3 vs. Wii
Is there a significant difference? We'd be likely to play more RB games in the future if we splurged on all the silly peripherals. Is there perhaps a better chance that more games or perhaps better looking versions will come out on PS3 over Wii? We're leaning toward PS3 already, but is there any possible reason to go with Wii over PS3?

Costs
Obvious the sets with RB2 bits are more expensive, but I'm looking at cost cutting. I noticed RB2 for $150 bucks at target and BRB disc alone is $60. That's $210 for both and then I'd have BRB+RB2 for $40 less than just buying the BRB bundle... correct? I also found the RB2 bundle for even cheaper on Amazon... so even more savings.

Where's the catch? Are the instruments going to be different? How much do I need an extra guitar if we'll likely just be playing with 2 people 95% of the time?