Pretty much all of them where the perps are caught (if by "get to court" you mean a complaint and a judicial resolution, not just cases where one party is obstinate enough to waste everyone's time on a trial).

Anyway, where this thread started is they're being charged with grand theft. You're right, there's not a lot of investigative resources put into petit thefts. But these perps have already been caught and, per the OP, charged.

Friend of mine did a couple of days for shoplifting a 59 cent cookie from 7-11.