Could be early on, around 2006, they were having major cracking problems.  At least that is what I read in the reviews section of this ball.  Plus, they are always trying to come up w/the next best thing.  Right now would be the R2S.  The Master & Premier line's latest balls are this coverstock.  Sure Fire in the Fire line is a hybrid R2s & the Thunder Line's latest are the R2S.  They found a cover that they like a lot better & think is more versatile so they are running w/that.  I was at my proshop guy yesterday & he showed me a Shift that cracked all the way around the middle.  That's the 1st I heard of any of the R2S having a problem.  Bowl up a Storm.  I'm looking at an Attitude today, could be my early Christmas present to myself.
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Just grip it & rip it!

I thought EOX was more expensive as well.  New and shiny is always more expensive because you have to recoup the R&D costs, but above and beyond that, I thought the excuse for the Paradigms being more expensive than the X-factors (which used nominally the same strong asymmetric core) was that EOX was a pricier cover.

Maybe they can't justify prices even higher than what they are now.  There was a stink over the Domination being at the same price point as the other Paradigms, even though it used the same Reactor (or R2S) cover that practically every other ball in the lineup used.

SH