Wow, that was looooooooooooooooooooooooooooooooooooooooooong!
You probably need a chemistry degree to really understand how to get things to bind together at an atomic level to get them to form into completely uniform compounds.
Undoubtedly a good piece of kit but I'm not sure how many home DIYers would get this just for mixing up small quantities of juice for themselves. I paid about £7.50 for a little hand held mini electric mixer which may not be as good as an homogeniser but it definitely helps to give me a pretty thorough mix that at least helps reduce the amount of time I feel my juice needs to steep.
If you're making bigger amounts of juice though for other people or you just want to own every bit of vape gear under the sun I can imagine there will certainly be a market for it.