I went sub spec at 52 or so, now 60, and its been the best thing ive ever done.
soloing is by no means harder (i find it easier in fact), i am far more useful in instances, and i completely wreck people in BGs, so, is all this combat love based on anything other than people being unable to throw just a teensy bit of effort/strategy into their playing?
(oh, dont give me that DPS bull, 1) i did more dps right after respec than before, 2) i do more dps than pretty much any rogue ive grouped with since respec.)
(oh, and even if your dps meter tells you at that second your doing less, try looking at total damage done, all you have to do is click the little circley thing in the top left a few times...)
now, granted, im only 60 atm, and if there is an actual difference at 70 i'd be happy to hear it and keep it in mind for future respecs, and im sure before 50 sub spec is more difficult than combat, but really, it just seems like people want to justify their laziness.