Here is the rub,the majority of the guys who knock hair systems are involved with transplant clinics.
It is in their own intrests to dismiss hair systems full stop.
The classic line is that you can spot one a mile off???
This in itself proves that they are in no way clued up on what is out there in the 21st century and what can be achieved very easily without the need for dodgy medications and / or costly transplants where the success rate is far,far scarcer than the hair on my head.
Which when you think about it all is rather ironic because the guys who have had failed or less than satisfactory results with transplants all end up wearing anyway to gain what they thought they would through surgery or just to plainly hide and cover the scars left behind, which in some cases are quite horrific!!