If you're unable explain technically why it's not worth and then please keep your opinions to yourself.
I have absolutely no financial ties with Intel, and to some extent I'm not even sympathetic to Intel (I'd much rather have ARM become a strong competitive force that makes Intel a lot more humble, hence competitive that the utter dominance it has today).
However I do have 30 years of experience with computers and have in depth expertise in all performance aspects of computing (Networking, disk I/O and cpu/ram/bus).
For some people 10% performance gain is worth it the trouble (possible with x32), for some people not even 30% performance gain might not be worth the trouble (impossible with x32).
Realize that some of the strongest proponents of x32 is Google, and they have tens of thousands of servers (I believe none with Intel ATOM processors) and still they're pushing this pretty hard.
Are you going to say you're smarter than they guys at Google ? I know I'm don't. And from your words it doesn't look like you know 1% of what I know about performance.
Get a grip.