Have you looked at pricwatch.com lately?
Well, i just went there and yet again, the prices have dropped.
Here are just some of the prices...
* Note: this is not with shipping *
PC2100 DDR 512 = $79
PC2100 DDR 256 = $28
PC2100 DDR 128 = $13
PC133 512 = $34
PC133 256 = $18
PC133 128 = $10
PC133 64 = $1
Check out Pricewatch for more prices