Why Are Vape Prices Going Up? Denton smoke shops prepare as Texas outlaws THC vapes, Chinese made e cigs and more starting Sept. 1 KERA News Vaping Safety, Smoking, Dangers, Pros, Cons, Debate, E cigarettes, & Tobacco Britannica Prices are going up across the vape industry. Not because shops want them to but because the pressure is building from every direction. From April 1st, China is ending VAT export rebates.