I ask, because I'm torn... I love starting fresh. For instance, those first few months of D3 (or any good game) are memories that I'll cherish. Starting fresh, with little or no knowledge of whats to come, and having a character where the content is actually challenging/fun.
Also, Ladder Resets were a huge part of that starting fresh feeling you could get over and over in D2. They were the closest you could get to that 'first day' feeling.
In many cases when an expansion comes out, the previous top items and levels are essentially beginner again (i.e. hard reset). But with the new Paragon system in place, no matter how obsolete your gear and level are... you will still have the ability to buff your characters' stats. With no 'ladder' in sight, RoS seems to be the one chance we have to get that starting fresh feeling.
As I stated, I love that 'starting from scratch' feeling and think that's how an expansion should feel, as if it was 5/15/12 all over again. This is the main reason I deleted all my characters; I wanted to start fresh when/if the expansion hit. But since the announcement of P2.0 and RoS, I recently leveled up all classes to 60 (still working the barb), so I have characters at the ready. (see above statement: I'm torn)
And before anyone takes this too serious... I know I can start over on a new account or region, that's not my point in this thread. I'm curious to see what others think, with similar memories of a Vanilla [insert game title].