Since Blender is where it is, for home use, it seems to be best option, just to do nothing when it comes to buying.
Blender viewport is so weak that make all the whole software practical useless for my need. Also, viewport don't seems a priority for Blender developer, concentrated to put in more features as possible instead of making stronger the viewport and in general data flow management.
but AD is sooo much more decent about advertising the features.
Will see, if there will be demo, and I'll have a time to play with it, maybe I'll update. Most likely, not.
I don't know if they'll present soon a demo or not, but what then? Luxology adopt a different upgrade system, very friendly, you don't pay in advance for unknown features, you can upgrade from the previous release (even an old release) without penalty or any kind of punishment. If you'll upgrade when the demo is out, don't cage nothing, at all. So don't understood your doubts about.
I agree about rendering, around I don't find nothing so simple and fast, but about modelling I learn to manage it, need a bit of customization (using pipeline) and becoming more fast (still prefer modelling in softimage, but modelling in modo is not so bad as I thought sometime ago. The some for rigging, is far from perfect, but after you found and understood the logic behind, it work. Also, luxology (Brad words) well know the actual Modo limits in terms of animation, but promising a fast growing, and I think, with these speed in development, modo will become a really viable alternative around release 801 or 901