If you haven't upgraded your Business from XP

[ViRGE]

Only? . XP has spoiled everyone with roughly 13 years of support. Before that, most of them got killed after 5-8 years.

Well, "only" in the sense that when your business moves that slow, 10 years isn't going to be a very long time. If it takes 5 years to plan an upgrade, you're going to have to immediately begin planning your next upgrade.