Yes this is a very pricey bucket. But I can give my best guess as to the reason, 1.) that luxury prime shipping option and 2.) them accounting for Amazon's high fees!! So if you want to get it for a lower price buy directly from their website. I'll probably do that next time when I buy another one of their products.
I just really love prime shipping. FYI, I'm not sponsored in any way to say any of this.
Overall, there really isn't much to complain, the bucket is really made out of good quality plastic, it's durable enough to push around on asphalt, and it does the job by holding water.