Should I use my cancelled ticket to fly somewhere?

I bought a $170 ticket to go to Los Angeles a few months ago but I cancelled it. There was no cancellation fee but if I use this cancelled ticket to go somewhere else there is a possible $180 re-booking fee!! I’m trying to go to Miami and round trip flights are looking no more than $250.

You think it’s worth to go on a trip to use my cancelled ticket even if it means paying the fee of up to $180? =( I have a year to use it…