[jacquesm]

I think that by most definitions it is a work of art. It is not practically useful, it is beautiful to look at (at least, to me it is), it is unique (for now) and it took a labor of love to be brought into this world.

[aswanson]

I think it would be useful to visualize how an assembly instruction works, to teach how it is executed in hardware.

[jacquesm]

I think the various 'soft' versions of the 6502 would serve that purpose better, but yes, you could use it as a teaching aid.