Warcraft III is worth buying but my reasons may be unconventional.
User Rating: 9 | WarCraft III: Reign of Chaos PC
The single player missions included with "Warcraft III: Reign of Chaos" are a lot of fun, and all the heroes in the game gain levels, use magic, abilities, and can even hold up to six items or weapons. WCIII follows the traditional RTS format in addition to a powerful hero. There are resource penalties for higher populations, and the population limit is very low so this game really isn't for people who want large epic battles. Your heroes gains experience and levels up. He or She also learn magic spells and gains abilities, as well as HP and higher attack. The game play feels like a mix between RTS and RPG. This game is great until you try going online to play a serious game. You’ll immediately see what I mean within ten games or so. The balance between the races is terrible. You most likely will see nothing but fast rushes or some cheap tactic or another being used against you (9 times out of 10 it is some cheap hero ability being exploited). The Night Elves are the most annoying with those huntress rushes. You’ll also see lame tower rushes with the Orcs. The most fun I had with this game was playing a user made mod called DOTA ALL-STARS. It is addictive and fun. Those tower building games are a lot of fun as well. If anything the user made mods are the reason this game was fun. There are a lot of RPG and Action mods on the server at any given time. Buy the game and try the mods! 
