Clearly you're single.![]()
Just kidding.
The fact my Wife has never said no to my latest technology loving, fast car driving, sorry butt - is worth any amount of money and definately worth .26ghz. But I digress.
To the OP, not a huge difference and for your application you should save the $150 and put it the bank. By the time the next version of the Mini comes out, you will have at least $150.99 (with interest) to put towards it.
I was kidding with you a bit, and I'd agree that relationships with people are a lot more important than with things, even if it's a Mac. But I would still go for a .26 upgrade over a dinner and a movie. It does sound geeky, though, I have to admit.