Advice on B&W Sig 30 purch.

I have an opportunity for a pair of B&W Sig 30 for around $2800. I've heard them before and I loved them, but it was several years ago and would like some advice as to how they would compare to newer models in that same price range. It seems like an excellent deal, and I'm replacing some P-6s. Should I pull the trigger or would I get better "newer technology" with a newer speaker in the $3000 range?