I don't buy or sell things much, when I do it is almost entirely on 2cpu forums. there, they use the feedback system called heatware.
http://www.heatware.com/eval.php?id=41793" onclick="window.open(this.href);return false;
I also have bought a few things on ebay over the years:
http://myworld.ebay.com/jaqie_fox" onclick="window.open(this.href);return false;
not very active, but 100% positive, and from established sellers.
I am after one or more authentic NES dogbone controllers (NO third party ones, thankyou) working or not, just so long as the shell and buttons are in good condition I can repair them myself. I will ultimately want up to 10 of them. I want them to restore to original condition and use for myself on my NES, mod a couple (logics only, no external mods) to play on the atari 2600, make a couple into native USB controllers to use with my mame system, and a few more for spares.
I would *PREFER* to pay $15 each or less, but if you have one in good condition, I am willing to pay more.
I much prefer to pay by money order, but am open to other payment methods.
please contact me either via AIM at jaqiefox or email at jaqiefox using gmail.