What with all the rules and regulations, and in some cases downright roadblocks, that some Bishops are employing to circumvent the Summorum Pontificum, I'll bet they're generating some envy from those cretins over at the IRS.
Read about some of it over at Fr. Z's (an older article, but indicative of the hatred that some have for the Latin Mass): http://wdtprs.com/blog/2007/08/bishop-of-pensacola-tallahassee-issues-his-own-norms-for-summorum-pontificum/