I'm with you there, Michael, but I really do find that sometimes giving away a signed card as a 'souvenir' is rather a charming thing to do.
It DOES leave you with 'holes' in your deck, but any working pro or serious performer takes that in their stride, right?
Aside from the obvious fact that signing a card is making it unique, I tend to think that it is also a good way of interacting with the spectator and also adds some natural misdirection.
I like the idea of re-cycling signed cards—eventually creating a sort of 'signed deck'. In fact, it's actually a good idea for an effect.
But for me, it's not such a problem to give out a signed card. Like Sym, I have stacks of decks of 'abused' cards which act as donors. I probably generate 10 incomplete decks a month.
Logically, the way to avoid throwing cards away is, of course, as suggested, to not deface them in the first place. Although it's almost an expectation these days (Signed Card to Lemon, Signed Card to Wallet, Signed Card to Shoe) etc.
The idea of a SIGNED card travelling to your wallet dispels any thought of using duplicates.
It just wouldn't be the same if it were "Just a regular clean card to wallet" I guess
