I'm looking for a laptop mainly for gaming. I found this on craigslist: http
/asheville.craigslist.org/syd/4572297293.html
Now my birthday is in September, and I have the money now for the laptop on craigslist. Should I get the one on craigslist now or wait until my birthday and get the 800-something dollar version of the lenovo Y510p (the single gpu one, not the sli). OR should I wait until Christmas and get the lenovo Y510p with the sli gpu?

Now my birthday is in September, and I have the money now for the laptop on craigslist. Should I get the one on craigslist now or wait until my birthday and get the 800-something dollar version of the lenovo Y510p (the single gpu one, not the sli). OR should I wait until Christmas and get the lenovo Y510p with the sli gpu?