From MMAJunkie:
First four months of 2011 (before insurance issued): 24 fighters pulled out of fights
Last two months (after insurance issued May 9th): 25 have pulled out of fights
Inevitable trade-off imo. It sucks that we're missing out on fights lately, but I imagine a lot of guys are probably thinking this is as good a time as any to get some life-benefiting work done.