Integrated graphics are still a joke today, even the NVIDIA 9400M and 320M. Is it so hard for Apple to put dedicated graphics in all their machines? If they did it years ago with the iBook, why not now? If they want to differentiate their product lines, then why not do exactly what they did between the iBook and PowerBook, which was to give the lower tier machine a lower tier dedicated graphics card?
By the way, your system did not come stock with 8GB of RAM.
You would probably appreciate the Toshiba "Qosmio X505-Q898, w/ 18.4 in Full HD 1080p Notebook PQX33U-05G025, Intel Core i7-740QM, 6GB DDR3, 500GB SATA HDD, 64GB SSD, BD Combo, GeForce GTX460M". Of course, you would think with a weight of 10.1 pounds, the battery life would be ... ? "Up to 3.75 hours" (more like 1.5 hours when using its horsepower).
It isn't "hard" to put really fast mobile CPU and graphics in a laptop. It is just hard to do it with a weight and battery life that allows it to actually be portable. Apple has done an excellent job of doing just that over the last three years.