Quick Shock/Strut Question

my last post was dealing with my shocks and if they were hurting me if they were squishy or not.

So... my question is, would I benefit the same if I just got some cheap ole struts and shocks from oreilys? Or should I get the more expensive KYB's or something like that? Whats the difference? I don't have much money and I need some shocks soooo.... help me out guys.
 
If you are just looking for replacement shocks and struts and don't have much money then I think some good replacements will work just fine. They will be better than runing bad shock and struts.