Im quite tired of replacing the T1Rs aswell, I usually get about 4 months out of them on the front.
I had Proxes 4 on the car when I purchased it, they lasted much longer but didnt have anywhere near the level of grip of the T1Rs.
They should bring back the T1S!
On the car forums iv been on, everyone seems to prefer either T1Rs or Eagle F1s, the F1s are meant to last much longer with the same level of grip as the T1R, so people have said they dont mind paying more for them.
I may be tempted to try them out, but I love the look of the T1Rs.