A few years ago my circumstances changed dramatically overnight, my business went from a big fully equipped workshop to small double garage size premises with just a few power tools. I quickly bought a few cheap machines but went for a Domino 700 instead of a morticer.
I managed for a while with just the Domino but ended up getting a lovely big old cast iron Robinson morticer (for about a third of the price of the Domino #-o).
The Domino doesn't get used that much now, it is useful for some things but more often then not things get a proper m+t.
It all depends what you will be using it for. I normally use the Domino for cupboard doors and some internal joinery. I made quite a complicated greenhouse last year with some strange angles/shapes in it and the Domino was brilliant for that but most of my work is traditional doors and windows which lend themselves to a proper m+t.
It is an amazing bit of kit, I think one of the best tools available.