Regarding the cost of e-pipes, I think any sensible manufacturer/retailer will keep an eye on the market and determine the best price point for his (or her) market. Just as you can buy cars for $15,000 to $150,000+, different e-pipes will be targeted for different segments of the market.
For an ex-smoker like myself, there's a rather wide latitude in the price point that I find comfortable. I have to consider that I was smoking ~2.5 packs-a-day at a price $5.75 per pack. This works out to ~$100 per week in consumables. Even if I spend half of that on cartomizers, e-liquids and batteries, I would still have $50 per week to invest in "gadgets". By this calculation, I can easily afford to spend $2600 every year on vaping devices.
There are many ex-smokers whose habits were not as extreme as mine, or who are determined to reduce their costs. Even so, they still have a sizable budget within which they can justify their new "e-habit".
I don't have any interest in paying exorbitant prices for a designer label, but I am willing to pay extra for merchandise that is durable, well-made and uniquely crafted. So far I think the price range of e-pipes is probably a good fit for the market. The more expensive e-pipes that are available seem to include a concomitant level of quality, service and uniqueness that justifies their cost.
Doc