Generally, I'd have to say "no", but there are specific exceptions.
I once had a rear sight that fell off of a Ruger Super Blackhawk while hiking trough some rough, bushy country. I called Ruger, and they sent me another in the mail with no charge to me. That's the only time I've ever used their customer service, but I've owned a lot of Ruger handguns.
On the other hand, I once bought a Springfield Armory "Micro-Compact" 1911 in .45 ACP. The guide rod broke before I had 20 rounds through it, and it took them over a month to get another one to me. Ok, so it only cost me agrivation, but I've not owned another SA firearm since. It's a shame, 'cause they're good guns.
But with a few special exceptions, I don't usually consider CS very high on my list of considerations. In fact, it' down toward the bottom...until I get bad service.
Daryl