Re: And the "Standard Model" is?
@Eadon, "What people forget is that SUSY makes the SM worse anyway, by introducing a 100 extra parameters that can have arbitrary values. The SM has about 18, I think"
Something like 18 yes, but 18 parameters that have to be incredibly finely tuned if the model is valid at high energy. Radiative corrections to the Higgs mass scale quadratically as you go up in energy, and only by finely tuning the SM parameters can you cancel these corrections and recover a sensible Higgs mass value. That's a horrible type of feature in any physical model.
SUSY neatly solves this 'Hierarchy Problem' since each particle type's radiative corrections to the Higgs mass are cancelled by the superpartner.
Sure, it's theoretical and there's no proof. But it simplifies the SM rather than complicating it. Add to that the fact that in SUSY models the EM, weak & strong coupling constants converge to a single value at high energies (something like 10^16 GeV for the MSSM), hinting at possible grand unification.
Then there's also the lightest neutralino, a weakly interacting massive particle and a perfect candidate for dark matter.
Certainly, there's no evidence yet, but the LHC hasn't ruled out SUSY and as Mallorn said LEP didn't come close. Theories are being constrained, just like the Higgs mass was being constrained right up until it was (probably) discovered in the last unconstrained region. People were proclaiming the death of the Higgs too, even back in LEP's day. It's far too early to rule out such a promising theory as SUSY.