Why are pond skimmers so expensive?

This is just a rant about how annoying i find the cost of pond skimmers. Luckily if you are tight on money but still want a nice, functioning, natural pond there are some DIY solutions. Links to some helpful videos. DIY Pond skimmer-    • DIY pond skimmer   Intake bay-    • DIY Dream pond build update| Intake bay   Everything i used to build my courtyard pond-    • DIY POND| DIY FILTERS| CLEAN, CLEAR WATER   ⚠️ Disclaimer: This video is for general educational purposes only. Pond conditions vary and construction carries risks. I share what works for me, not professional advice. Full disclaimer available at ozponds.com