No, I say "Keep the Eris" because it is a great phone and after playing with both I still believe that it is the right phone for me. It feels better in my hand, is more pocketable, plus as a phone that has been out there for longer, has more support and fixes.
Like I said before, just because the Inc has better specs does NOT mean it's always the best phone for everyone. Not everyone NEEDS the huge screen and processor and 8mp camera.
I don't get the mindset that "everyone is jealous of the Incredible" and "how could you still want to buy the Eris when it's been out for 6 months, OMG is is sooo old and slow, blah blah blah."