Quoted from TheStranger:If you can afford it HEP. Expensive but it seems you do get what you pay for, that is if you are thinking in the long term. If you are the person who keeps a pin for a year then sells it, don't bother.
Keep in mind HEP only offers restoration services, so he'd still have to have a base game to send to HEP.
Pre-owned HEPs do pop up every now and then.