I have a lot of vintage Apple tech. Much of it still works...<p>I have a 2001 PowerPC G4 Quicksilver tower. Haven't booted it in a while, but it worked fine last time I did. If you can find these local to you, you can often get them very cheap. Shipping is expensive though, so buying them on a place like eBay is kind of a non-starter. I recently found a sealed old copy of Cubase VST available online for about $10. Bought an old M-Audio PCI card a long time ago for this machine too. At some point I may set it up as a Digital Audio Workstation.<p>I found a pair of old (2001) PowerPC iBooks on eBay a while back. They're good for running kids games and software - useful if you want an inexpensive, air-gapped machine for a young child you don't want on the open internet. Or typing / writing. These can be had very cheaply, I think because many schools bought them and eventually liquidated their inventory to replace with newer equipment. I had no problem finding inexpensive new batteries for these on eBay, and bought a couple extras.<p>More regularly, I use my old mid-2007 black macbook to run the original Starcraft. I'm running it via the OS X Installer (it's originally a PowerPC OS 9 game). I'm not much of a gamer these days, but Starcraft can be fun once in a while... like when PG&E in California shuts off the power for days and you want to conserve your main laptop's battery for work... And it's cool to have games that actually support local lan multiplayer, which Blizzard moved away from over time.<p>For anyone looking to delve deeper into this topic, here's some recommendations (off the top of my head) on what version of OS X to settle on for a given machine:<p>For older Intel Machines, I recommend 10.6 Snow Leopard. This is the last OS to support Rosetta, which allows you to run PowerPC OS X software. Note: PowerPC OS X software, not PowerPC OS 9 / Classic software.<p>For older PPC machines, I recommend 10.4 Tiger. This is the last OS to support running OS 9 applications via the Classic environment. Or of course, you can just install OS 9 and forego OS X altogether.