Great White vs Air Venturi tanks

Agreed. JB tanks are of good quality and the valves are also well made and have a "Slow-Fill" feature that only allows so much air through to lessen overfilling issues.
They are also very responsive to needs when calling.
Yes, the Great White Tank has more value as when doing the math, it's less expensive than the smaller tanks, plus you get more of an air reservoir for more top offs.
mike