To each his own. I couldn't swing it but I honestly do get it. I think it would be fun.
I mean as I said I used to do it.. so I get it somewhat. It's just now phones are so close I found myself doing the same tasks on each and spending tons of money to do so.. didn't click in my head so now I stick with 1 phone.
Back in the day there was a difference... Now? Eh.