You can still redeem the loot cards, though. Look at some mom & pop comic/card shop and you might luck out and get boxes of WoW cards for cheap.
The redemption process is daunting though – you have to CAREFULLY scratch the gunk off the card, carefully because if you’re not careful, you will destroy the underlying serial number. You then have to go to a specific web site and type in the bazillion digit serial number (it’s like 25 or so digits). You gotta make sure you get the digits right and sometimes, the digits are ambiguous and you have to proof read the serial number and back track swapping digits until the web site takes the number.
If you get it all right, you specify the server you want to redeem the mount (or battle pet, or toy, those were loot cards, too). You will be given ANOTHER bazillion digit serial code. Luckily, you can control + C this from the web site, if you’re careful and you don’t do something to overwrite what’s in the clipboard.
Then. And only THEN will you be able to… wait for it. WAIT FOR IT. log into the game, go to the character on the server you specified and then… wait for it. Go to freaking Booty Bay!!!
In Booty Bay, you find Landro Longshot, a pesky little gobbo guy midway along the board walk. Talk to him and then (hope you wrote down the “expansion” your card is from) you pick the expansion – the holy grail mount, crystal tiger, still sells for hundreds if not thousands on ebay – was from Fires of Outland expansion.
Then you pick the specific loot prize from the list of three available for that expansion. You will be prompted for the second serial code, you can then control + V paste the number from the web site into the window and you will get your mount (or toy or pet).
I got the X-51 Nether Rocket eXtreme from one of those expansions, I forget the name, lucked out and pulled the card from a box I got cheap from a local card shop. I bought a couple of boxes of Fires of Outland hoping I’d get the crystal tiger but never found one.
And boxes from that expansion were insanely expensive since Upper Deck short printed them and mercenary card dealers jacked up the price, like $20 for a pack of cards from that expansion, and hundreds of dollars for a full box. They knew everyone wanted the crystal tiger mount and some people were willing to pay the premium for the lotto like odds of getting one of the mounts.
And Upper Deck’s collation of cards were horrible. You could buy two-three boxes of cards and not even make a 150 card set and maybe not get the rare loot card.