Now there are currently two ways to get a level boost: you buy the latest expansion or you pay $60. However the downside is that there is no redo button, meaning if you boosted a class you don’t particularly enjoy, well that’s just too bad! However the good news is that Blizzard could be changing that in the upcoming World of Warcraft: Legion expansion.
It has been noted that there are some strings spotted in World of Warcraft’s code that hints that Blizzard could introduce a trial boost system. Basically gamers can boost a character to level 100 and experience what the class might be like before deciding if they want to make this permanent, thus allowing them to make better decisions.
However note that this feature has not been enabled in the Legion alpha right now, so there’s no telling if it will make it to the final build, but it does sound like a pretty good idea, doesn’t it?