Worth it to get a stand for 2 monitors?

Is it worth it to get a stand for 2 monitors, or are the default stands that come w/ em good enough?

I'm getting 2X22" widescreens

 

I have 2 Dell 2405FPW's (24 inch). I use both with their original stands. Never had a problem.

- Spydertrader

 

I have a 22inch in the middle, and 2 19inch on either side.

Defualt stands work just fine