I was the one who made the comment about "throwing money away" - I just wanted to clarify as it was a passing reference and I didn't fully explain.
I don't think there's anything wrong with renting. Everyone needs a roof over their head and renting achieves that. Some people rent for life and never own, and I don't think that's a bad decision. Owning property isn't a choice that everyone wants to make.
However, if you plan on buying, you're already in the right area, you have a deposit and can afford a mortgage, then I think that continuing to rent is a waste of money. Essentially, if there's no good reason not to buy, and it's something you want to do, then the sooner you get onto the property ladder, the sooner your monthly payments will be going towards an investment rather than into a landlord's pocket.
In your circumstances, renting was a deliberate and considered choice because you didn't want to/couldn't afford to get onto the property ladder in the area where you wanted to live. I wouldn't see that as throwing money away as you achieved something that wouldn't have been otherwise possible. If, on the other hand, you just hadn't gotten yourself organised and fully intended on buying in that area, then I would consider rent as throwing money away that could otherwise be used towards an investment ie/mortgage payments.
So, rent is absolutely not always a waste of money, and sometimes it's the best option. But equally, there can be some circumstances where it can be. Very much depends on the individual circumstances, and no offence was intended.