Thanks.. i'm always up for a good discussion/conversation, and always willing to learn something new.. but here's my view on this...
I didn't like the fact of having to purchase, install and maintain my own heat, and usually more than one heat source is needed.
We all know many that have larger Visions keep UTH, Radiant Heat Panels, and Heat Lamps.
I think it is ridiculous to have to go through so much.. I have heat installed in my Boaphiles, have never had a problem, never had to replace them or fix them, etc.. same with the lights, which are not used or required as additional heat.. I almost never need them on.
I don't like the cages for what I had to go through to move them too. This involves the cages. They way they are built, they sag and all.. even though they are grooved, if I were to pull one out, it would still move a different way .. in otherwords, the grooves didn't work.
To me, those grooves inside is a waste of space.. ruins the floor.
Now try to put something like a Kane Heat matt in there..
We had to drill holes, cut the cord, rewire it, run cables, drill the matts onto the bottom to secure them...
After your heat and lights and all, you need about 3-4 outlets per cage.
The 'flood damn' is another waste, to me, and incredibly difficult to clean and incredibly attractive to urates and poo.. lol
The screen area for the heat lamp is inefficient for me.. inefficient for lighting, heat, air, humidity..
The heat lamp shines on one little spot.. and that's your basking area. Put two lights, find another electrical socket.
and those lights are such a fire hazard.. I hate them.
The screen/gate used in the back.. to me this is horrible.. smaller boas still get nose rubs, and it lets in WAY too much air.
In the year I owned my Visions, my snakes NEVER had one good shed! Not after having drinking water bowls, soaking water tubs, AND misting each snake in each cage every other day!!!
In the first month of owning Boaphiles, I realized my snakes were having perfect sheds without misting or anything other than drinking water in a small bowl.
and then the glass doors which are heavy and won't open or close because of cage sagging if you have a stack.. that shouldn't happen!
and then the times a large snake has broken the glass, or a smaller snake has gotten through the space between the glass..
More than half a dozen reasons...
Now, i'm a breeder, with limited space.. to me, the Boaphiles are worth their weight in gold.
When it comes to SPACE, and DISPLAY type cages, then, obviously, you can't compare! I'd get a Vision if it were for a pet or two.
Thanks again, now I have to finish some work so I can get home in time to pack and ship more snakes out... can't let down the customers! 
Take care, Joe
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Thanks and take care - Joe Rollo
'Tis not the stongest of the species that will eventually survive, nor the most intelligent, but the one most responsive to change' Charles Darwin