Free: Contests & Raffles.
I used to have a PPS and it was a nice little CCW gun. My only complaint was the trigger but they've fixed that to a large degree with the new M2 version. I sold mine and replaced it with the M&P Shield PC.For a CCW, I'd take the PPS over the PPQ but if you want something that you are going to shoot a lot and you can live with the size difference between the two as your CCW, the PPQ is going to be more enjoyable to shoot.Unless you are just set on only getting the PPQ, there are others in that same class that i'd take a look at, too.
Have an assortment of each. MY Personal preference for CCW is the PPS 40. Depends on the situation which ends up on my side.Just surfing logging roads a bag of guns usually ends up in the gun vault. Head down to a gun range, rent and shoot a bunch. See what catches your eye & go for it.I like em all and make excuses to get more. Holster selection is a much harder choice. Far as the PPQ goes. A while back I took a selection of handguns to the range & met up with a half dozen friends to shoot. Everyone shot each- Glocks, PPS's, PPQ's, XD's, 1911's, M&P's (including a shield).When the dust cleared- everyone who shot the PPQ's made ragged holes at 15 yards. No contest which they shot best. (The XD's faired the worst BTW. 9mm & 45 targets looked like bird shot patterns.) No failures - all functioned well. I've done it on other occasions where the PPS M2, PPQ M2, VP9 & Shield were favorites. One persons hands-down-favorite was the PPS, another shot the PPQ & VP9 into ragged holes - but his favorite was the Shield. You will end up with more, as long as it functions properly it is your decision which to get ..first...