You have to decide whether it's worth it or not. I've travelled across the country to march before (like, east-west coast) and I worked my butt off at my part-time job to pay for plane tickets and tour fees and stuff. If you really want it, it's possible. Look into sponsorships as well.
As others have pointed out, though, you could always wait until later in the year and fill a hole. You'll go into complete and total corps withdrawal, yes, but it's better than not marching at all.
And as for my not-so-shameless plug, BDB will take ya and give you a home. Pinky swear. :)