Because the "mainstream" sites pay people pennies a word to crank out content like "best gaming laptops."

There are sites that do some good gear reviews for relatively specialized equipment--especially not gadget/electronics. But this isn't the 1990s when PC Magazine would have a 600-page issue with a big chunk devoted to the best printers as evaluated by their on-payroll staff.

I'll occasionally put a review of something up on my site but I have neither the money or interest in doing multi-product comparisons. That's pretty much impractical outside of something like Wirecutter (which I generally think does a pretty good job).