I have been building models since I was 5 years old. (1971)
My first 30, or 40 kits were not good, to say the least. By the time I was 10 I had figured it out and had around 150 sitting on my shelves. By the time I was in high school, I figure I had built around 500.
But then I discovered something. People would actually PAY me to build stuff.
From 1985 to 2010 I had built around 2000. These were the high detail kits you speak of.
I now only build for myself ( customers suck.) And only truly detail about half the kits that now cross my bench. I have slowed down a bit and in the last 20 years have maybe completed 150 ???
So, overall, I have built approximately 2550 models.