First two my Dad brought home from work: A Rockwell AIM 65, then a Tektronix 4051 graphics terminal with storage tube display.
The Sinclair ZX81 was purchased as a kit we had to solder together. The university I attended encouraged students to buy a Mac, and I bought an SE/30. A few years later, I got into NeXT programming, and found an amazing deal for a used NeXT Cube. A few years after that, after college, I bought a NeXTStation mono (with greyscale screen).