Good luck getting a Pi 4B without it being in a kit. That said, the markups on the Pi 4B are just insane. I've seen sellers selling a bare Pi 4B 4GB for $120.
The kit gives you a:
- Pi 4B 4GB (MSRP $55)
- Pi Case ($5 - $10)
- Heatsinks ($5)
- HDMI Dongle ($5)
- Power Supply ($10)
So, $80 worth of hardware for $140, while pretty darn annoying, it's much better than $55 worth of hardware for $120.
I honestly would have gone 4.5 stars, if there were the option to do so, just because of the markup. I also understand if they priced it too low, scalpers would just snap up the kits and part them out, leaving DIYers totally hosed.
The kit is great and has everything you need to get rolling on a new project.