Current [pricelist] (prices in US dollars). Whether or not you care about edition etc. yourself, it might not be such a good idea to trade away stuff that's priced in the double digits for stuff from more modern editions, in case you ever become short enough on money to go the eBay route. For contrast, [[Blackborder.com], which normally has prices from three shops, as opposed to taking the average of 1 transaction.
What a good idea. Since I'd already got Nokkette to record for me that cards I'm interested in trading for include MTG: Broodstar and MTG: Lightning Greaves, I should have thought of doing that myself. --AC
How bizarre. MTG: Mind's Desire is priced at $3.50, and cardguy.co.uk lists it at £2. Think I might be trading for some! --CH
I have built decks before by going "ooh, that's priced at 'I don't want these'", and getting four. My unnatural reflections deck being one such. --TI
*innocent whistle, shoving behind him his Tetravus-Pentavus-Thopter Squadron-Blinkmoth Urn-Vermiculos deck. And any evidence of his former Blood Hound deck, or the Mortal Combat-Cephalid Vandal, or ...* --AC