I find cycling a bit boring and it takes a comparably long time to work out as much as running six miles. I also enjoy that running doesn't have any tech attached which can become a burden, like a gear shift that's not 100% adjusted. To each their own, I guess :)

This year, though, I got to enjoy it a bit more when I tried some "triathlon", sprint distance, which encompasses 20km of cycling (a joke for every serious cycler). Maybe next year I'll try to tackle the olympic distance.