When I bought my Purge Mods Maelstrom brass it was only 405 Euros. The SS version was 495 Euros so ~$100 more expensive because obviously it is mostly just the impact that the type of metal has on the total cost of the machining, not the difference in cost between the two different types of metal so yeah, some people have spent more on just the cosmetics of just a single mech mod than others like to spend on an entire bunch of complete mech mods, and, if the threads and contacts are in perfect shape as well as are clean, then the impact the type of metal has on the vape simply pales in comparison to the impact the design/machining of said threads and contacts has on this same vape. The better the design and the machining, the smaller the impact of the metal type. Like I said the impact of the metal type on what can be felt (or perceived) on the vape can border right on the edge of nonexistence. In addition, there is something psychologists call "expectation bias" (not to be confused with the "placebo effect", albeit there exist a few similarities there...). But the real reason I'm not trying to judge anyone is because, even though I stand by my conclusion you probably wouldn't be able to prove, objectively, that you can feel the difference on the vape if both the design and the machining are done right, in the end it is still nevertheless a hard proven fact that even the most die hard objectivists among vapers are still only being subjective each time when they decide which mod to buy... just like any and all vapers truly are. Performance of the mech mod matters, and matters a lot. But personally, I, don't see myself trying to scrape the last thousandth of a volt from underneath the soles of my VTC5A battery so that's the point I was trying to make by adding a little bit of my sarcasm.