For most users there is no need to root your Razr. It really depends on what you're trying to accomplish by rooting. If you like to tinker, load different ROMs, "fine tune" settings that you can't get to without root to extend time between charges, over-clock or under-clock the CPU, load themes that require root and rid yourself of apps that you don't use or want then root maybe something you want to do. With the amount of memory and the speed of the CPU's on current smartphones there is really no need to root to recapture memory (for most people) or to "speed the phone up". It's really a personal preference and what it is you're trying to accomplish. Some users want to root "just because they can".