While I am always looking for sales/deals, I find it a bit laughable that any of us complain about a racket costing $250. Tennis equipment is SO cheap compared to most other sports...not to mention you can typically use the same racket for decades if you want. The difference between a $175, $200, or $250 racket when amortized over time is nothing. Especially if that racket allows you to play to your potential with reduced risk of injury or other similar benefits.
I also find it interesting that ProKennex rackets are considerably cheaper than comparable Prince/Wilson/Yonex/Head rackets. Yet at the same time, they are not really popular. Marketing matters, but even more important is what people are willing to pay. And it is pretty clear enough people are willing to pay $200-$250/racket, no questions asked.
I think calling for a "boycott" of any brand rackets is a pretty capitalistic way of telling the mfg. their pricing is out of line. Problem is that $50 when it comes a racket is almost splitting hairs....now, if a mfg. started charging $400+ I could understand a bit more. A better bet for the price sensitive is to simply buy used.
Final point -- I just bought 2 Wilsons (have had Prince, Babolat, Volkl, and Wilson rackets in the past) and was nervous by all the QC chatter around here. Luckily, the two Wilson rackets I most recently purchased (one from a local tennis shop and the other from the big auction site) came in at 312g and 311g when the spec was 310g. Not too bad IMO.