Time and money like everyone else, but I think for me, it's the fact that the destinations close by are not as appealing as ones with mountains and better trails. I have a ton of gravel/dirt roads around me that hinder everyone from using, and most lead to some spectacular views. I have a few state/county lakes with camping ground around that are desirable places to stay overnight. now especially, the weather hinders any trips as it's consistently between 0 and 15 degrees during the daytime. My rig is not the best at holding in heat just yet and my gear is only good to around freezing. More time and money to do the necessary upgrades will allow for more winter travel.