Several reasons for the first question. I hate scrap. I really hate throwing out obsolete things... like a real of 1000 emitters that just went into the trash or a few hundred others that were already put on boards that just got scrapped. We are going to stick to small runs and just change those runs as different emitters present themselves. A year ago, there were very few options unless a major Hogo headache happened, also known as a "group buy".
As for customers supplying their own emitters... Go back and look at some of the threads when emitters were suggested... many won't even fit the HDS footprint. It would be a bigger cluster XXXX than the Battle of Karansebes was for the Austrian army. I did bring it up to Henry ONCE. I will not do it again. It wasn't pleasant... but maybe more pleasant than the battle I mentioned previously. It would also be VERY costly. And just thinking about keeping track of it gives me a headache. Just go back to a thread I closed asking about opinions on a couple emitters and very damn few people who commented seemed to understand the concept of bin coding. There was more ignorance there than in the U.S. House of Representatives. I can't even begin to imagine what would get shipped to HDS.
Nope. It is absolutely NOT going to happen. I have tried to be nice about not shutting down discussion on things since Archimedes and I got into it a year ago, but I can definitively say that it will snow in Tucson before this happens... wait... Ummm. Nope. Still not going to happen.