Hey, some people just love gaming, haha. What he spends his money on is not our business. If you're okay with spending that money, spend away.
As for parts, if you're the type that wants to be able to use the same comp for the next 5 years without making any significant upgrades, you'll have to buy top of the line. If you wanna do that AND save decent amounts of cash, that'll chalk up to how dedicated and patient you are at hunting for deals. My brother made a computer that retails for at least $3000 for only $1700, but it took 6 months to get all the parts.
Also, if it's in your budget, SSD needs to have more space. Those 120 gbs go reaaaaally fast.