If Aces High is the only game you're going to play for the next two to three years, then I guess I can warrant building (if you have the skills/desire to do so) or buying a cheap PC. If you want to play other games (more graphically intense), I say don't waste your money on a new PC. Because in 6 months you'll be wanting to upgrade to play that new game, but you low end PC is going to need another overall to achieve that.
My opinion is, if you're an avid gamer and enjoy playing games outside of Aces High, then don't waste your money on a cheap build. I game about 90% on my PC and 10% on my Wii. I spend about 98% of my time on my PC and 2% of my time on my Wii. So I spend a lot more money on my PC than games for my Wii. Every time I build a new computer, I spend at least $1000. I reuse what parts I can, but gnerally I get my PC to go about 3-4 years. I do minor upgrades during those 3-4 years. That is add another/new hard drive, new sound card, new fans. Sub $200 parts.
My friend bought an EMachine computer that gets like 60 FPS during huge battles. For only like $$300.
I'd like to get one of those (I bought the monitor we already have, so my dad is short a monitor

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