Buying the sim is only part of the equation... you need a computer or laptop with a graphics card and the appropriate power supply. Usually laptops do not have the graphics power to do well on a PC game. If you are already into PC gaming, then you will not incur additional expense. If your laptop is sub $500, it is probably not going to do well. It is possible to turn off some of the graphics options to help things run better.

You might also want to consider Phoenix Flight Sim.