Die Hard XP user, have resisted upgrading for years. Been using my Surface Pro with Type Cover for about a month, 75% work (Real Estate ) and 25% personal - Love It! Still have desktop in home office, use Surface when not at desk. Easy to take to Corp office for meetings or when out on appointments. Corp uses Office 365, Outlook, Word, Excel, and SkyDrive to store files. Seamless operation with Windows Phone and easy to tether Surface and phone when WiFi is not available. Desktop, Surface or Windows Phone easy to use. Will be purchasing new MB, CPU and SSD to upgrade desktop to 8.1. Probably need to change out desktop monitor to touch capability, getting spoiled.
Bought wife Surface (RT) to replace her laptop, don't think she will ever fire up the old laptop.