Ha ha, I just caught this thread. Doc, you sneaky bugger

Well, I have to admit that the BK-7 has moved on from my hands, but its new owner likes it swell and I think that makes for a happy ending. I did like the BK-7, but compared to the RC-6 it just couldn't quite match up and when I would go to grab one or the other, the RC-6 or Rick's S-curve inevitably come out.
Now, I usually like taking the S-curve in preference to the RC-6 but, but I sometimes stick my knives through the nastiest crud that I'd feel bad doing so with Rick's piece of functional art. That and my left index finger still has a lump of scar tissue the size of a pea on it from when the S-curve decided it was going to try and lop it off at the knuckle
Not too many regrets, but like Mtnfolk Mike, I've moved a few on in pursuit of new surprises. My RD-9 is something that doesn't get much use and probably won't because I decided that 9" x 1/4" choppers aren't for me. However, I don't begrudge the RD-9 for teaching me that lesson. It was a lesson that needed to be taught and she came to me from another great trade so its all good. I think I would have been far more disappointed buying a battlemistress, even though they rock as choppers, but finding out in the long run that I'm just not a chopper knife kind of guy. That said, I'm still smitten with my Koyote leuku/machete. Guess I just convinced myself its a machete and not a chopper
Biggest regret was the mora #1. False expectations. I thought this thing was going to be amazing. It was just a utility knife. I thought a scandi blade was going to make me a carving maniac. It didn't. I did learn what a scandi will do and how it behaves, but for me the claims people have on them just don't reconcile with my experience. So regrets for buying it? Well, it was a lesson learned and I don't begrudge the mora that either. I think I'm happier knowing I'm not a scandi-phile and did not jump into a bushlore or something like that.
Can't say I have any regrets on any of the custom knives from W&SS makers I've bought. The only regret is that I have too many knives of the similar class and I just can't really bear to move any of them. Oh well, do I begrudge them that? No.
I like all my Rat Cutlery blades, but I know myself enough that I am thankful I did not buy the hest or the RC-5. I'm pretty sure I wouldn't like them. Also, the RC-3 forum knife. The orange handle kind of annoys me now for some reason. I thought it was great at first and I love the orange G10 on my Breeden pathfinder, but something about the coated blade and orange handle just looks halloweenish. But its a great little slicer, I got it at a great price when they went up at the subforum and the ESEE logo is still pretty neat. Do I begrudge having it? No way, I use that puppy all the time!