I bought the Leaf last summer and the other two vehicles have definitely become the second cars.
Last summer, 3 weeks after I placed a factory order for my Leaf SV, the 2003 Doge Ram 1500 pickup threw a rod (on a trip a 300 miles from home), so I took it to a local engine shop to get a new engine installed. The same day that the Leaf arrived in town, the pickup came back from the engine shop. Since that time, mileage on my three vehicles has been:
2013 Leaf SV - 9,100 miles
2003 Dodge Ram 1500 - 800 miles (350 of that was a round trip to Kansas City for a wedding, 100 miles was towing the 16' trailer to haul stuff around town, and possibly 200 miles have been loaning it to friends that needed a pickup for a day.
2006 Ariel Atom 2 - 600 miles. For the last three years, I put 2,200 to 2,900 miles/year on the Atom. Part of this was just wanting to drive the Atom, but it was also a wretched Fall and Winter, so it has been parked for a while. It's just barely getting to where it's nice enough in the morning to drive it to work now.
I'm sort of toying with the idea of selling the Leaf and Atom and buying a Model S to replace them. If the prices on used Tesla Roadsters had dropped a little faster than they had, I would have purchased one of them instead of the Atom.