Honestly... Ram is so darn expensive these days.
Even 8GB super cheap value ram is 80-90$.
I good *deal* is to get GOOD ram instead of trying to skimp on a couple bucks and get value RAM. Corsair Vengeance is a very high quality ram.
1 8GB stick is 79.99$
http://www.amazon.com/Corsair-Vengeance-Desktop-Memory-CMZ8GX3M1A1600C10/dp/B005T63BJM
2 4GB sticks is 100$
http://www.amazon.com/Corsair-Vengeance-240-Pin-Platforms-CMZ8GX3M2A1600C9/dp/B004CRSM4I