[кому] не до [чего]

[lexabear.livejournal.com]

I've encountered a phrase in a short story that I can't make heads or tails of. The translation-helpy-guide is no help at all, either. It says to look it up under another entry that doesn't exist... don't you love it when that happens?

Anyway, here's the sentence:

Двугривенный цена не сходная, но ему не до цены...

I got all the nouns in that part down pat, but all the little bits elude me, specifially the "ему не до" part of it.

Any help?