Sorry, but I need to respectfully disagree, on your estimation of the materials quality of the BFT and on your generalizations...
I have the BFT in my little fist at the moment - or at least I would have, if I weren't typing - and it is VERY well made. Very good quality materials, accurately engineered. Vision is known for this, with good reason. It is definitely worth trying out - as several of us have. Go take a look at Mike Todd's youtube review...
Vision, like KangerTech, Joyetech and Innokin, and myriad others, are top-rated Chinese designers and manufacturers. Their products are not shoddy in the least. But if you don't like 'em, you don't have to buy 'em.