HA! my husband and I do this once in a while, when we are ready for bed and all we can do is chit chat about nothing in particular, we sort of allow us to have some what if's moments.
The thing is we don't even play the lottery, I am too forgetful to buy a ticket...
but for us, there are some simple things we want and some not so simple. Mind you with that type of money you could do just about what you wanted to do anyhow.
build a new home on our land, set up our kids for the future, a new vehicle, pay of debts, help out some family and friends, travel to different places,(we've been together for 10 years and we have yet to take a vacation) support my kids school, and church, the women's shelter and food bank and the community we live in.
but I guess for us we always come back to the same thing, we wouldn't give up the farm life at all, we would just make it easier by having all the proper equipment and making it bigger,

I think a good part of it would go to helping friends and family who are struggling along.
Ema