Sorry about the wierd double post, I was typing that out on the phone..
Anyway.
I know how you feel, I would love the idea of taking things apart that I messed up but I grew out of it for one reason, Everything I do I can see the faults in, Nothing I have done is in my mind anywhere near perfect yet. I reckon it never will be, I am extremely critical of my work. And any thing that doesn't cut the biscuit it's good to have around to remind you of the mistakes made.
As other people have noted too, it's not as easy for non leather workers to see the faults in anything.
Most toolers probably wouldn't know what a twist under a pineapple would look like, or where a lace snapped and such.
But the way I look at it is, I will never stop learning if I am this critical and always seeking the perfect piece. But if I ever reach it thats not something I will ever sell.
But first I have to work my way through the 105 completely unrelated leather braided projects I have listed. I love it that much, I would braid my tooth brush, Infact I might just do that one of these days...