I have a shoebox full of knives and rotate them around some. I used to collect gun company marked knives, but now they are all Chinese made and finding the old ones seems harder.
I mostly have been carrying a Kershaw to work. I have 2 that have the spring assist opening and they have been very sturdy and stay sharp. I also have a Bucklite that I've had since the mid 80's that's sharp as new, but a little bulky to carry at work, but it's been one of my favorites.
I got on a kick about auto knives for awhile but, I never got any of the $100+ knives, just the cheaper ones. And quickly found out why they were cheaper.