In western Nevada used 101s seem to have been going for between $300 to $350 (condition & dealer depending). I got mine for $280 but it was rather dirty (still in good shape) and I have bought enough from this dealer that I get fairly good deals (at least for this area). I have seen new SP 101s from about $375 to $450. FYI - Until recently the Ruger web site listed these guns for $458 but the price recently went up to around $480.
GDB