26" vs 700c

Crap, I hate that whole 'buy a bmx' argument but honestly, there is like a very very select bunch of people doing the kind of tricks on their fixed wheel bikes which require a fixed drivetrain.

Totally agree. For the majority of people It would be far more fun on that 26" Volume - 24" to you :-)
General messing about type tricks on fixed just end up clumsy. Wish that Volume had not been posted as I like the look of that!