Do you and your mom get along well? If so, maybe she could sell and you could both move together somewhere further north, and give your children a more rural life.: )
Like cowboyway says, that kind of money will buy a lot more elsewhere. : )
My mom and I do get along well, but she is set in her ways and considers herself "too old" to uproot and go somewhere else.
(She's 52 forcryingoutloud!)
She's great at guilt trips. *grin*