Yes, I don't know why we still use mechnical drives when we have these nice SSD :-p.
Seriously, the reason to have a pagefile is to prevent your machine from crashing. Until recently, most laptop maxed out in 2Gb. People can blow through that by running photoshop. When you run out of physical memory, you die. On a linux system, paging occurs rarely if you have a large app. Windows save more to page for some reason.
Getting back to the issues, I was wondering if paging would improve moving to a different disk but on the same channel. One person say yes, the other say no.