1) It's never been "hard" to reinstall OS X. What was difficult last time you tried?
2) The OS reinstall path is identical to the OS upgrade path, making it very well tested. This has been the case since (IIRC) Snow Leopard.
3) The latest few generations of hardware can even (re)install the OS over the internet, meaning you don't even need to carry around media to reinstall. (Assuming you're on a fast connection or are willing to wait.)
2) The OS reinstall path is identical to the OS upgrade path, making it very well tested. This has been the case since (IIRC) Snow Leopard.
3) The latest few generations of hardware can even (re)install the OS over the internet, meaning you don't even need to carry around media to reinstall. (Assuming you're on a fast connection or are willing to wait.)
It's entirely painless to reinstall OS X.