the stock one sure doesnt hurt anything. may not be as nice as some of the $500 ones but it isnt a total waste. just use this as an opportunity to justify getting a better one
I can't comment on the Triumph ones as I have a street triple which doesn't come with a damper. =(
HOWEVER, I remember some of the Gixxer guys used to pull out their stock dampers and refill the hydraulic fluid (or whatever is in there). From what I've heard, they weren't really filled all the way to the top, so just topping them off and clearing the air bubbles made it better. Again, not as good as the expensive aftermarket ones, but I heard it made a huge difference over NOT doing it. Might be something for you Daytona guys to try.