This paper I'm trying to finish up uses an enormous dataset. I can't run more than 5% of it on my laptop, so I have to come into school and use the library computers, which have more memory. I still only run 25% of it there. The computers may be able to handle more, but I have to stay with the computer, more or less - no letting it go overnight.
I have a credit card.
The Apple store down the road has desktops.
I could just go buy a desktop.
No, no, bad Turducken. Wait until you are a faculty member and get startup money.