I ran across an interesting link to Vapers Alley today, an auction site for vaping related material. There are categories for everything from e-cig kits to mixing supplies and it also includes a category for that other type of vaporizer. I didn’t see anything that struck me as a bargain on Vapers Alley and there were a relatively small amount of items for sale, but registration, buying and selling appear to all be free, so this has potential. Buyer beware is undoubtedly a phrase that applies here, however.
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The most interesting thing to me about that site is the “Cool Tube” mod that you can put together yourself for a cost of £1.50 in parts (assuming you have the skills, patience, and tools – unwarranted assumptions in my case 😉 ).