MIC is about the most fun thing to happen to low level adventurers ever. There is a ton of stuff in there, little things, that have minor bonuses, but are actually very useful, and are reasonably priced. Its FUN for PCs to have magical bobbles, but its not fun for the DM if he upsets the scales of WBL. With the exception of a few outliers, most of the stuff in MIC is pretty resonably priced for what it does, actually makes it a tough decision between the ol' standbye gear in the DMG, and some new stuff that is just as good, but different.

MIC was an outstanding suppliment, IMO. Too bad it came so late.