Vangogh wrote a great piece on his blog recently about
The ROI Mindset. I think he made some really good points. You have to look at things from the mindset of what your potential return will be, not what you're spending.
It's like the house I just bought. If I looked at all the money going out right now, I'd pass out. Instead I choose to look at it all as an investment and one that will benefit me for a long time to come. I may be spending quite a lot of money, but my potential return is very high.