Do you know how fast your PC really is?
There are many factors that can be taken into account and many ways to measure the actual speed of your PC. http://www.solidmuse.com/benchmarks/solidworks-benchmark-punch-holder/ is one of the best testing files to see how fast your PC actually is when it comes to feature rebuild time. This could be probably translated into other formats as well, but this particular test is prepared for SW users, and I just had to test my new configuration... 49.84 seconds :)
So, how much time it takes on your PC? ;)
Versions from 2007 through 2011 are included in the package.