My inner hoarder wants to back up my nine years of email, but let's be honest, I'm never going to look at it. I'm glad you're upgrading the site. Don't forget to fix the very most important thing ever: custom forum signatures.
I started look through them and forgot my ex-gf and I used to write each other a ton on this. Started revisiting all of that last night and yeah... I'm glad it's all getting deleted