Could they not just lock the controller to the purchased account for the first 1 or 2 months? If you want to buy it for someone else you can use the gift option. Of course people could still resell it, but the people who buy the scalped controllers wouldn't be able to use it for two months, and the original account gets flagged as a scalper, and maybe banned if it's against ToS? And if you don't like your controller you can either just return it or wait out the lock-out period. But there are probably issues I'm missing.