As a fan of Microsoft (surprised?), I had decided that from now on I will build all of my projects using the express projects - its FREE! I could have joined the contest at http://www.madeinexpresscontest.com but I didn't because I didn't want to get involved in something that I may not have the time for. Anyway, since I've been using express I've noticed that there are some critical aspects of the studios that I'm missing, but hey - we didn't have those tools a few years back so I should survive. I'll keep you guys updated as I find stuff that is missing as I code on.
#1 - Class Diagrams - yikes I love class diagrams and no its not in the express editions.
#2 - Add-Ins - Microsoft yanked out add-in support for the express editions so my little cool tools don't work.
#3 - Solutions - I can't possibly have a solution with all my projects & web projects in the same solution view, and due to the fact that I'm really impatient and tired of opening up C# express and web express, I've moved all my libraries from C# express in the web project itself and closed C# express for good. I still have my layers (presentation, business, data) in tact but within the same web project using folders. I guess that's how it should work anyway and I should have started out this way in the first place.