hey everyone, I was just wondering if a mid 2009 iMac 20" would be worth the purchase to use it for nothing but light internet and YouTube? I don't need it for much else, just a simple desktop with a bigger screen than my MacBook Air m1. its running OS X El Capitan 10.11.6, 2gb 1067 MHz ddr3 I am seeing these very cheap and was considering buying, any advise would be great thanks