I agree. I've always been a ThinkPad fan, although oldest I've tried and actually touched was a T510 (2010?). Had South Bridge problems, wouldn't boot sometimes, so I sent it back to its seller on eBay. I'd imagine old Macs to definitely be a little more robust, though I still love IBM's hardware motifs.
How useful/fun do you think buying an old Macbook/Mac Pro would be, particularly one from the Snow Leopard era? Never owned a Mac before, but I love the aesthetic and function of old OSX from what I've seen. I'm thinking of an older desktop model, maybe 2009/10/11, for document work and browsing; don't want to deal with a crappy battery, after all.