Just bought a new mattress/box spring and browsing the internet it seems there is a lot of discussion on the need for buying box springs. From browsing various sites the thoughts are:

1) Keep your old box springs if in good shape
2) Don't bother with box springs, just get some type of solid surface unit if you need something underneath to boost up the mattress. This thought seems to be more prevalent if going with some kind of foam/latex mattress.
3) Definitely get a new box spring with the new mattress if it's a traditional style unit.

As I said in the opening sentence I went with a new box spring but just wondered what others think about this?