I don't have a GPS yet (nor a smartphone -- yes, yes, I know), so I don't, but the reason I will stick with something else if/when I eventually get one is that I actively don't want to see the competitive stuff. I'm not that fast, and I would find constantly being in the bottom of the rankings (which I'm sure I'd be) disheartening and make it tough to see improvements. I *am* competitive by nature, but I'm not a speedy cyclist, and constantly "losing" would kill the joy. I don't know if you can turn that off in Strava and just log rides with it, but even if you can, it seems like I'd be better off with a different service.