In reply to Dan Arkle:
Sorry it's not an answer but I really like mine too (at least for bouldering) and am in the same position. I had one pair resoled and they're good as new, so try that if they're worn out and you've nothing to lose.
I'm nursing my remaining other pair by being incredibly careful with my feet, and even then I only put them on for the send after working problems in something else.
If it helps rule one thing out I'm currently mostly using anasazi VCRs but I'm not very happy with them, and they're not a similar shoe.