Step one: ration >!e v e r y t h i n g!<.
Bonus advice: Discounts doesn’t mean you’re saving, you’re still spending, just not as much. I saved 20% two months ago (damn you Steam Anni!)… Now i’m ＩＴＣＨＩＮＧ for that hot new thang… for M o A R!
That is all.
If you have that much disposable income and have someone to sell the old one, go ham :)