The fact remains that the N900 has no evolutionary replacement available yet and it's very outdated.
If you wanted to get something newer and better, your alternatives aren't Maemo or even MeeGo based. So, yeah.. the N900 looks like a toy compared to this bleeding-edge device, its specs and flexibility.
To argue that the N900 is "good enough" or that it can do all the same things is religious zealous at its best and certainly doesn't ask Nokia to improve anything at its worst.