For 8 years my mom has been using a budget laptop (Intel Celeron 1.5 GHz processor!) so I build a simple desktop for her to surf the net. Motherboard, RAM, and the PSU are reused from another PC.
Integrated video card handles World of Warcraft on ultra settings with 50 fps on average. It would probably handle most older games just fine, but I am sure my mom will never play even Solitaire.
I love the In Win 301 case! I know that 5 case fans for this build is an overkill, but hey, it was 5 (RGB) fans for $47 so why not.