I don't think renting is throwing away money. We are paying someone in exchange for a safe, dependable, maintenance free place to live until we are ready to move. I think there is something to be said for that.
We are currently renting. We moved here so I could attend graduate school. We researched the market here and homes take an average of a year to sell (if they ever sell), and homes do not appreciate. It would have been a BAD financial decision for us to extend ourselves to buying here, and we would have been responsible for any maintence issues that came up as well, and all the costs going into selling a house.
I have a friend who did buy here, graduated from school, and can't get rid of the dang house. He's having to rent it out now in order to help pay his mortage, and will have to hire a company to oversee it for him since he's moving away for a new job.
We rent a 1100 sq ft single family house in a decent neighborhood, 2 bedrooms, detached 1 car garage and storage shed, 1 bath, central air and heat, most appliances, huge yard, etc for $595 a month.
Though we're ready to buy when we move to wherever we're going, we certainly don't feel that this was a waste of money at all!