Windows XP comes with System Restore which is what GoBack is
You don't know what you're talking or you never tested GoBack.
Definetively, it's not the same, neither close one of the other.
GoBack works. System Restore just use disk space...
The other utilities have similar. GoBack does not have a similar one.
Norton WinDoctor never brings me trouble.
There are better defragmenters than Norton Speed Disk. No one (that I've found) has the possibility to configure which files you want in which part of the HDD (or partition): first, at the end, end of the disk, etc.
Norton Utilities aren't a waste of time, imo.
But, for sure, Symantec products have become bloatware, specially NAV does not work as we want...