One thing to consider if you want to go to one of the big star parties near you but are worried about the rising cost of gas/diesel is ride sharing! You'll get the benefit of sharing the costs of the fuel and also sharing the ride with a fellow astronomer and making new friends. If you're new to things, it's also a great way to hook up with someone who knows their way around star parties that can show you around and help you out with star party etiquette and so on. (Unless of course you're both new to things... )
One way to try and find someone to rideshare with is to post in the thread here in Star Parties for the star party you want to attend, mentioning that you're looking for someone to share a ride with. Not a thread yet for that party? Feel free to start one!