Thanks for being open to questions. I always wanted to know this:
3 copies of a simple 50x50mm, 6 layer, board is 184€ and takes 13 days to make as per https://aisler.net/en/products/boards - for comparison, JLC makes five 100x100mm 6-layer PCBs in 11 days, for $2. (And no, it's not only because of the (always available) coupon. Pricing generally gets better at higher quantities.)
So my question is: why is 6 layers so expensive? Are you really truly economically unable to even get close to JLC, or do you just not care about prototyping orders (or the overlap between hobbyists and professionals), or are these smaller boards a too large part of your revenue that you can't compromise, or is it more a case of being stuck in an outdated legacy mindset where 6 layers is "a lot" and must be allocated to "serious business" only, or is it something else? Or am I just completely off about proper market segmentation? (Same for going to 2oz copper.)
Please don't take offense at the way I'm asking; I really really want to be your customer. I'm never going back to unnecessarily constrained shitty 2 or even 4 layer designs, when a simple part/sig, gnd, vcc, sig/gnd, gnd, part/sig stackup makes design soooo much easier even for simple circuits. But I really would love to know why nothing comes close to JLC one level up from novice PCBs.