I had a 2GB memory upgrade a few months ago which I posted here. It seems like my old PC is running smoothly with the upgrade I had. One thing for sure I know that 3 months from now, new games and computer soft wares will be release with new features and stuff which would require more hardware resources, bigger disk space and more memory. That time there will be desktop applications which would need a 4GB memory perhaps. A better video cards with dual cores or more for best performance. The cost would then be a factor here. Take for example; PC3200 DDR400 SDRAM upgrade can cost you from $15 up to $175 depending on the size of the RAM which will you buy. This cost could go down for as low as $5 as soon as the demand for this hardware will go slow.

From what I experience on the upgrade I had, I came to think that it is better to buy a new one or when you buy a new one, you will not sacrifice the performance and power over the cost because as soon as you want  an upgrade, it could costs you twice or more. Even if I already have upgraded to a more RAM I think this is so bitin pa rin. I think a 4GB memory would be the best thing to have to run most applications and games aside from faster CPU like the dual cores or even quad cores.