A portable PC console lets you play your backlog anywhere, and a decent one should easily last you three to four years. Hardware makers drop minor revisions almost every year now, but the performance jumps are usually tiny. Buying last year's flagship or a factory-certified refurbished model gives you essentially the same gaming experience for hundreds of dollars less.
A reliable unit runs about $650 from direct manufacturer outlets. If you do not want to hand over that cash all at once, you can split it into small, manageable pieces with the Discover it® Cash Back without paying extra in interest.
Remember that a 0% intro period is a strict deadline, not free money. If you still have a balance when the 15 months expire, the regular APR will kick in on whatever amount is left, so treat that final date as non-negotiable.