I also love the Quadras, but they wouldn't count as pre-System-7 since they shipped with 7.0.1. Though I'm honestly more nostalgic for System 7 than '80s Macs because 7's what I grew up on. Mine's a Quadra 700, and I love how much computer it fits into what little footprint: https://i.imgur.com/snIBxeF.jpeg