I'd agree with some things and disagree with others. Sure, you'd think the last m68040s made by Apple should be something special with good performance and without too many compromises, but I suppose they didn't want people to buy these as fast m68k machines for older applications instead of PowerPC machines. That's also the most likely reason there never were any m68060 Macs - they'd have been on par performancewise with the PowerPC models.
I have a similar machine. I believe it's a Quadra 630. But what I like about it is that I can put in a ridiculously large hard drive (it has a 750 gig drive, and I can put in up to 2 terabytes if I add a SATA to IDE adapter), it has 196 megs of memory, two ethernet cards, and I even downclocked it to 25 MHz so I could add a QuadDoubler. In my case, the IDE interface and the newer memory controller both worked to my advantage, but I can certainly agree that not being able to add a NuBus video card and having cheesy video on the motherboard isn't the best design decision. I use mine as a server, so I don't care much about the video.
All in all, I think it all depends on what you do with it.
I have a similar machine. I believe it's a Quadra 630. But what I like about it is that I can put in a ridiculously large hard drive (it has a 750 gig drive, and I can put in up to 2 terabytes if I add a SATA to IDE adapter), it has 196 megs of memory, two ethernet cards, and I even downclocked it to 25 MHz so I could add a QuadDoubler. In my case, the IDE interface and the newer memory controller both worked to my advantage, but I can certainly agree that not being able to add a NuBus video card and having cheesy video on the motherboard isn't the best design decision. I use mine as a server, so I don't care much about the video.
All in all, I think it all depends on what you do with it.