Visit a lenovo site from any other country (excluding Canada), try Australia or UK and find that the exact same laptop, the Thinkpad E540 can come with discrete graphics.
Nevertheless, this a trend not only with Lenovo laptops but with laptops of other brands, dell, hp, etc., the exact same laptop, one from the U.S. or Canada has integrated graphics while from other countries they include discrete graphics.
This thing really drives me crazy, although I am only an occasional gamer, I do play games like bf4 which runs very poorly on Intel HD integrated graphics. I'd much rather spend $80 more on a discrete graphic card, rather than upgrading to a faster i7 processor. I hate buying gaming laptops because they are not only expensive but are large and bulky (see the new Alienware laptops). Other high-end laptops that do include discrete graphics are all to expensive.
Overall, I wonder why laptops in the U.S. don't include discrete graphics, while the exact same laptop in other countries do. Is this a marketing issues or is it the general flavor of consumers? Is there a way to get around this in the U.S.?