Bests & Worsts Reviews from Amazon

I bought the HP M451dn printer after doing a bunch of research. However, none of the reviews explained that this printer only comes with 128mb of memory. Within a few days of operation one of our sales guys kept getting "out of memory" messages. The standard memory places (Crucial, Newegg etc) did not carry the extra 256mb memory modules. HP sells it for almost $600! I found what I needed at Parts-Quick.com for $13.99. The person I talked to was very helpful- a former HP person. I now have 384mb of memory and no problems. Why doesn't HP put enough memory in this one??? The memory you will need is CB423A HP 256MB DDR2 144-pin DIMM Code: EV_CB423A at Part-Quick - It was only after I did hours of research that I found Parts-Quick. The same module is available from Parts-Quick through Amazon but the Amazon description does NOT mention the HP M451dn as a model that this memory works with. See my similar review at the Amazon memory module page.