I'm upgrading some old, non-overclocked computers that currently have generic memory. The old generic memory will not be removed. Thus putting in 'high quality' memory will not do anything to the machines when compared to putting in identical memory to the ones currenly in the machine.
First example of the computers to be upgraded: it currently has 64 MB of Samsung 66 MHz SDRAM. I will upgrade it to 128 MB. Thus I will purchase one 64 MB stick. I can get it for $19.99 at Crucial or $3 elsewhere. Of course, I can do better that the standard Crucial price. I could get PC100 at Crucial instead of 66 MHz for $16.99, subtract the 15% discount and it becomes $14.44. This is nearly 5 times the price of 64 MB SDRAM elsewhere. Now add shipping: free at Crucial (total $14.44), $3.50 elsewhere (total $6.50). The result: Crucial costs more than double.
Here is a second example that I will do (3 computers need this): upgrade 128 MB of Kingston PC100 SDRAM to 256 MB. Thus I need one 128 MB stick. At Crucial the final price is: $23.99*85% + $0.00 = $20.39. Elsewhere I can get it for $10.00 + $3.50 = $13.50. The net price is just under double (although the base price is more than double as I said in the first post).
Third example: needs more RDRAM. Oops Crucial won't sell it, I must go elsewhere.
Fourth example: needs 128 MB PC2100. Crucial base price $36.99, elsewhere $20.00. This isn't quite double, but it is close.
Edit: I can even get Micron memory for about $1 more than the Samsung and Kingston as long as I don't buy it from Crucial. Now I still fail to see how Micron memory from Crucial is higher quality than Micron memory elsewhere. Like I said in other posts: is my 2 liter Pepsi higher quality if I buy it from Hy-Vee instead of K-mart?