In approximate order of purchases since September 2015 (high to low, dollars spent):
Local Vape Stores(purchases made in person), Nude Nicotine, Juice Mafia, Charlie Noble, Element E-Liquid, Scott's Mods, Focal E-Cig, MVS, Lightning Vapes, Twisted Messes, Coil Master, Ahlusion LLC, Origin Vape, VaporDNA, Origin Vape, TEMCO Industrial.
Why is this? Every month, do or die, I order a min of a 500ml, 100mg/ml, Nude Nicotine Armor v2.