I forgot that crosses may be harder to sell, so your decision to stay with pure is probably the best idea. The only thing that I think is flawed with the thinking that crosses are complicated and no one should do it is this: a well-documented well considered cross with good bloodlines is bound...
I don't mean to bring up a new question in your thread, but are these good feeders for all chameleons? I'd be interested in putting a flying insect on the menu to add some variety.
Nosy be are generally smaller to begin with. I don't think you should worry about them being crosses. I have a 50/50 and he is absolutely beautiful, with unique colorations. Just make sure you clearly document the cross to all potential buyers of the babies.
The difference between the two is not much, but the reptisun bulb has provided more success for more chameleon and reptile keepers, and may replicate the uv output of the sun more accurately.
Dunno if you have seen this site, but it's a good link, and also explains the problem with compacts...