Does price matter in my choice of a carry weapon? yes, somewhat. a few years ago, I was involved in an incident where shots were fired and my carry weapon - a Ruger P95 - was confiscated. It was never returned, and was ordered destroyed per (apparent) local statute, though the shooting was justified and no charges were ever filed. It was therefore a loss of $300 for me. From that point on, I chose my carry gun according to several factors:
reliability: i want absolute confidence that, should i ever need to use it, it will work.
size: it has to be weight/size appropriate for everyday carry. yes, i know that a ccw weapon should be "comforting, not comfortable," but it is a fact that bigger, heavier weapons are often left at home for convenience, even by dedicated ccw holders.
accuracy: i want to have confidence that, if needed, my weapon will hit the target, as long as i do my part.
durability: carry guns take a lot of abuse. heat, cold, sweat... they get knocked around, bumped and banged against chairs, doorways and walls and such. they have to be able to withstand lack of care, occasional maintenance and still work as designed when called upon to do so.
price: yes, for reasons mentioned above, i would not want to carry an excessively expensive pistol (which is subject to loss) for SD. of course, "expensive" is a subjective term and depends upon how much money you have to determine what, to YOU is "expensive"
for me, lately i prefer a Glock, usually either a model 23, 27 or 30 for SD. it is light, reasonably accurate, comfortable to carry, durable, not too expensive and fairly easy to replace, should i ever have to.