Exactly. You don't need any of COM+ (which is really what to call it) unless you are trying to use the DTC. The rest is all done by the runtime already as you point out. [Sam Gentile's Radio Weblog]
No. Show me a COM+ feature except the non-transactional incarnation of the shared property manager (AppDomain statics may do that), which is exactly or even similarly replicated in the runtime. App-specific roles aren't, object pooling isn't, JIT activation isn't, QC aren't, process model (thread pool, app pool, pause, disable, recycling) isn't, event monitoring isn't, LCE aren't, memory gates aren't, secure RPC isn't, security context isn't and this list isn't complete. It's simply not right, Sam.
