I'm new to mac with my 2009 macbook but like it alot. I have a mild gaming windows PC at home but not longer play games, kinda lost interest. So cannot afford a new mac pc so looking at 2nd hand. found a few a1224 for between £100-£150. the a1224 can run el cap which is why I'm looking at this model or higher. is it worth buying or shall I wait a year or two and buy a new/refurb imac? I'm planning on selling the gamer to fund the purchase. I was looking at mac mini as have a 19" monitor. but what do you guys think? I never been a fan of super small computers as tend to be hard or not able to upgrade.