We now have 5 Surface tablets for us and the kids, we all love them. One is a surface pro which I replaced my wife’s laptop with for Christmas!
You can get used surface RT’s on eBay for about $200 with a touchpad now that the new generation is out. They come with a OFFICE PRO 2013 built in for FREE - which includes Outlook!
The app store is decent, however, the browser is a fully functional Internet Explorer, so you can just go to the website if you can’t get an app for a particular site.
Its been a few months since I bought some Surfaces for the kids, injust checked eBay and they are now in the $280 range, still a good deal.