Yup. For me, my bike is mainly used for exercise, not transportation. I'll lock it to the bike rack at the local food cart pod when I'm getting a bite to eat,

Yup. For me, my bike is mainly used for exercise, not transportation. I'll lock it to the bike rack at the local food cart pod when I'm getting a bite to eat, and that's about it. And yet I still spend nearly $100 on a Kryptonite Evolution lock with an absolutely monstrous chain. The lock + chain weighs I think 15 lbs, IIRC. It's absolutely overkill. But it means an angle grinder and several very noisy minutes would be required to steal my bike while my back was turned, rather than a quick snip with bolt cutters. On the other hand, the bike parked next to mine, with the cheap Masterlock that can be raked open, connected to a $5 cable that can be snipped with Harbor Freight Chineseum wire cutters...that bike could probably be stolen without anybody around even noticing.