When the T3 comes out (hopefully not called Tyros again) I'd imagine most T2 owners will part exchange if it offers a major leap forward in sounds, styles and features yet again. I for one will part ex my T2 especially if the replacement comes with 76 keys (pretty please Yamaha).
If the Roland Devotees are also dragged with us as cgiles posts above, I'll look forward to landing on top of one to cushion my fall