I can't say that CRK has spoiled me for other brands at all. I will say that over the years, I've come to concentrate on carrying/using 3 brands (in no specific order):
CRK
Victorinox
Spyderco.
I always have a couple of SAKs on me, along with whatever single-bladed, one-handed folder I carry. That will never change. For most of the past 19 months, my one-handed folder has been my large plain Insingo. Sometimes I switch it out to carry my Native 5 LWT, or some other Spyderco. I'm currently saving up a 'large Inkosi fund'. I've already accumulated 1/4 of it just from spare change I've been accumulating in a container.
There are some times, places, situations, etc., where I'd rather carry the Spyderco over the CRK. For example, I just drop my Native 5 Lwt down in my pocket; works better in dressier situations. But oddly enough, in spite of CRK prices, I'm not hesitant to use my CRK for some tougher jobs that I might hesitate a bit with some of my Spyderco's, as I know the CRK can handle it without damage. Not saying a Spyderco is weak or couldn't handle it; it's just a feeling I get.
Jim