My first mixer was a crappy little Behringer Eurorack - four preamps, no faders just knobs, and small enough to fit in a briefcase with room to spare. Not fancy, but did the job.
My second mixer was a much pricier Mackie Onyx 1220 w/ Firewire. Sounded pretty good and was fun to use, but the Mackie's power supply went south after 5 years (the slightly infamous Mackie Onyx helicopter of death), and it got shunted to the back of the storage closet. The little Behringer? Still going strong 11 years after I bought it. Pulled it out last year to do a little on-location, non-critical recording, and even after sitting dormant for half a decade, it worked like a charm. A bit scratchy on the main monitor pot, but that's it. It outlived my supposedly built-like-a-tank Mackie by a solid 6 years.