35mm SLR camera still works SHOCK!

Funny thing really. I put a roll of Provia through my new (to me) £4.50 EOS 500. I used various lenses ranging from a 17-40mm f4 L through a 24mm f2.8 to a 100mm f2.8 macro. Good lenses, good film, and all the pictures came out just fine. Sharp, well exposed, great colour... Wow. Who'd have thought it? But then why wouldn't it work? Everyone thought these cameras were great in the 90's and they were. They had matrix metering and multiple AF sensors.  Yep, just like a modern DSLR. The only real difference is the capture media. And there's nothing wrong with Fujichrome!