If you have the money buy the house and stop renting. Remember even though you are renting a house you have to do some maintenance work in the house to you taste and not everything you will like to involve your landlord to come and do it for you buy a house, you can design your house the way you want. There are some kind of things you won't do in the rented place but you can do it in your own house.

It is not even advisable for a grown up person to rent a house when he has the money. There is nothing like personal home.