Owning a custom off-road trailer means you can reach remote spots that standard campers just cannot handle. You will need to budget for extra maintenance like checking suspension bolts and tire pressure, which take more abuse off the beaten path than a normal road trip.
Prices for these trailers usually soften as the camping season ends in late autumn. Sellers are more motivated to move them before winter storage costs kick in, so keep your eyes peeled for listings during those colder months.
Remember that the 18-month window is a deadline, not a gift. If you still have a balance once those months are up, the card will start charging interest on whatever is left over.