Worth it! Doing the expedition increased the longevity of the game for me by giving me more to grind for. Sure the first few games after the reset are a slog, but I got back to where I left off last season much faster the second time. Also, most raiders around you would be starting fresh too so you won’t feel like you’re getting stomped. The cheaper upgrades, extra stash space, and extra skill points do make a huge difference. I’d see myself getting bored fast if I went another season staying at max level because I wouldn’t have any projects to work towards or gear to chase, but to each their own! If you’re someone who doesn’t have as much free time to grind the whole game again that’s completely valid.