I know I've got dual displays at both work & home, & I know I could never go back to a single monitor. It can be a bit difficult to get the dual display setup working with games, but the benefits far outweigh the initial effort.

"Dual display configurations are not difficult to setup and offer an economical alternative to upgrading to a larger monitor. The convenience of such a monitor arrangement can be reaped in both business and personal applications, and once you experience working or playing on two displays, you may wonder why you didn’t do it sooner."