Antique Barn wood is easily as much as $20/board foot. Was hoping if i could get my own wood, I could get one custom made. I'll try to find some barn wood that would is thicker when I am in Michigan (where my family has several 100+ year old barns) and see about sending you the wood to make one for me, so I can have an original work of art that would make everyone envious, (and include enough extra wood for you to make one for yourself from this beautiful wood as well as long as you agree to not sell any other mods with the wood I would provide for free to you)
As far as the other suppliers. Competition is the basis of our economy, You fill a niche. While yours don;t have a VV option, or offer the exact same options, your mod is unique. There are several people on these forums that would happily buy from multiple vendors just to have multiple unique pieces.
I just started vaping (for the 2nd time) and have already invested more than I have saved on tobacco to date, so I suspect my first mod will me one of the $30 plastic juice boxes (you are currently my 2nd choice). I don;t want to spend $80 or even more on my first juice box. I don't know that my personal preference is to a Juice Box or the eGo that I have been greatly enjoying (far more than the 510 I had a year ago when i first quit)
we have dozens of suppliers to choose from for batteries, juice, atomizers, and so on. You are offering a hand crafted work of art that no one else offers, so Keep it up! If they can't handle the competition, then so be it.