Not a sad thing at all. It is a complete difference in approach. You have people with a passion and the time and willingness to build something like this, but it can take YEARS to assemble a suit like this. Sites like TDH thrive on these kind of people.
On the other hand you have people who have a passion for the character but aren't willing to do all the work to assemble it themselves or to do all the research to acquire the HUNDREDS of individual pieces and then assemble them. Sideshow is providing these people the option to have a high quality version of that character with minimal effort.
So, you are looking at two completely different types of people. Our community doesn't really service that second group very well, so Sideshow has stepped in to fill the need.