Lightroom: could come in 4 stages
Set up Lightroom that shares directly into a smaller editing program like a Photoshop Elements. It could be set up in four flavors. One Basic like mention. Then an upgrade level with CS 5 (or CS 6) that offers all the bells and whistles of Photoshop (Curves, CYMK, LAB, Actions and the like) then an Advanced version which would come with Photoshop Extended with 3D. Then just the Lightroom program as it is now but with better cross over features.