Why not? Should I do a convertible like everyone else?
I'm not a great fan of convertibles, though at least the big full-frame models seem to do better structurally than the floppy, creaky unit-body ragtops that Detroit churned out in the later '60s. And in the '70s, '80s, and '90s. But, please: don't show me a nice '56 Lincoln Premiere ragtop while I've got my checkbook with me.
The big Detroit station wagon is an artifact of another era; trendy in the '40s, absolutely ubiquitous in the '60s, largely gone by the '80s. Today its role is filled at the utilitarian end by various minivans, at the status end by Expeditions and Suburbans, but the last real attempt at a really big passenger-car-based wagon has petered out with the demise of GM's B-body.
Taking on restoration of a station wagon brings some handicaps. The guys driving around in convertibles and hardtops look at you like you're driving their parts car. No one bothers to reproduce parts specifically for wagons, so where weatherstripping, etc. is available it will have to be cobbled from sedan parts. And, of course, should I ever want to sell the beast the likelihood of recovering any of the restoration investment is just about nil.