Yeah, I wouldn't put too much stock on the tire pressure listed in the book or door plaque as they are the recommendations for the stock tires. My car lists 32 PSI and the stock tires had a max sidewall rating of 35 PSI. Now I have tires that have a sidewall max of 51 PSI that I just filled up to ~50; going back to 32 PSI will reduce my FE by ~5 MPG.
Get the tires you want, fill 'em up as far as you feel comfortable.
