This did not just simply come randomly, however. Players have been demanding and asking for World of Warcraft Classic for many years now. And Blizzard has likely learned from companies like Jagex that regained a huge portion of their player-base with the launch of Old School RuneScape, which prior to it had a 2006Scape private server. Similarly, World of Warcraft Classic/Vanilla has been around in the form of private servers for many years now and has been very popular. Even top players and streamers have been known to play on these private servers. The only issue is Blizzard were not the ones profiting from these ventures.
In order to save up gold quickly, you must be mindful of your character’s professions. According to various sources, the most profitable profession back in the day used to be herbalism. Mining and skinning are right up there as well. Gathering-oriented professions have an advantage compared to the crafting ones in the early levels because gathering doesn’t require you to spend gold in order to make some coins. You can find plenty of herbs to collect, ores to mine and beasts to skin, all while you’re levelling. Everything you manage to gather can then be sold in the auction house fairly quickly.
FYI: If you’re returning to WoW after an extended absence prior to patch 5.0.1, it’s possible that you’ll have more than the maximum pet limit and/or more than 3 of a kind. However, this will be the only time that you’re allowed to surpass these limits. You will have to pare down your collection, eliminating your duplicates, in order to add new pets.