Not if you're happy with the range. I think Nissan were offering exchange Leaf batteries for about £4k at one point, but I'm sure there are cheaper places that will repair or recondition your existing battery pack. Of course, you don't have to buy a second hand Leaf. The early ones didn't have battery cooling systems so they used to give their batteries a hard time. Spend a bit more and get something with a bit more battery life left in it, if the range is important. Not many people use £1500 ICE cars to do big miles with, either.