Xbox games still played on Live?

[Jashin]

Can anyone tell me whether these Xbox games still have people playing over Live? They're really cheap now, but I don't want to spend money if no-one is playing them anyomre:

Street Fighter Collection
Battlefield 2
Star Wars Batlefront ?2
Splinter Call Chaos Theory
Ghost Recon whateverthelastonewas
Toca 3
Forza

[randombs]

sf collection still has the odd few, but hardly any, and i bet there'd be even less now that turbo's out