Because I prefer 15", and the Thinkpad W510 with i7-820QM, Quadro FX 880M, 4GB ram, 320GB HDD and 9-cell battery is $1929 with the current sale.
Although I don't really know the difference between FX and NVS, and I'm not sure if I'll be better off with 8GB ram instead of 4. Any pointers? It's...