SODIMM (Kit of 2) Upgrade

I have an HP Pavilion dv8321ea Notebook PC and I have concluded on the following 2 kits:

1 ) CORSAIR SO-DIMM DDR2 MAC MEMORY 2GB (2X1GB) PC5300 (667MHZ) DUAL CHANNEL KIT
Latency (CL5(5-5-5-15))
Cost: 30.00 €

2) KINGSTON KHX5300S2LLK2/2G HYPERX SO-DIMM DDR2 2GB (2X1GB) PC5300 667MHZ DUAL CHANNEL KIT
Latency (CL4 (4-4-4-12))
Cost: 40.00 €

Having so small differences in the latency do you believe that the latter
worths the extra 10 euros?

I would appreciate any insightful comments.
:-)