IMO, don't waste your time with another car much less an Integra. By the time you spend the money to by the damn car and insure it what will you have gained? Nothing really. I'd rather have 2 cars I can enjoy instead of a point A and B car.
Tune you car to get gas mileage and drive and enjoy it. If you need help tuning it for gas mileage, contact Overkill for one of his PCMs. He'll get things straightened out for you. He's a good guy.
Soon, my GP maybe a daily driver once more if I get to move postions at my job (meaning no more company vehicle, but other benefits of course). I ain't afriad, i'm actully looking forward to driving my car daily again. I miss it honestly, I enjoy cars. Even with the 3.29 gears and the 3,000 stall, gas prices ain't going to scare me to drive it. I actully got to drive my car alot this weekend, I was out late last night look for trouble. For all the driving I did it didn't use much gas at all.
Enjoy your car dude, tune it, and drive it like you're suppose to!