It just comes down to someone's own perspective. Why don't you try to build a then top tier atty like the Corona V1 from 10 years back? I'm pretty sure the experience will be quite enlightening.
Compared to just a few years back, we're in vaping heaven.
There are setups available nowadays, that noone ever dreamt of 10 years ago, not only in case of functionality but also considering ease of use.
There is a setup for everyone's preference available today, from DL, MTL, leak proof designs to flavor and cloud chaser devices. Just a blink of an eye ago, you had to be content with what was available, even if it was pure garbage by today's standards.
Overall production quality has improved significantly as well. What was thought to be top notch then, is sub standard today at best.
As the production quality rose, the prices plummeted. Sure, there are still so-called high end atties around, but their prices are not calculated because of superior craftsmanship anymore, but because they're manufactured in the more pricier countries. But even those devices are not as costly anymore as their predecessors were back then.