I'd keep working
Not so much because I'd get bored, but because even though I already love my job I would love it even more if I was working because I wanted to instead of for the money (and there are probably a lot of people who feel that way). The other reason is because if I had that much free time I'd just waste it anyway. I take a week of annual leave twice a year, and in the month leading up to it I think of all the things I want to do during that week, and then during that week I don't do any of them 