[bbody]

Oh I see. I think your self-awareness about the fact that other products will influence you is probably a good sign. None of us build products in a vacuum, I think most companies (big & small) keep tabs on their competitors to get ideas. Is it immoral for eCommerce websites to also implement things that Amazon does? Unless it is something that has some protection (i.e. https://en.wikipedia.org/wiki/1-Click), I don't think there is really a problem. Your competitors are also looking at your site, doing similar things.

This might make you feel a little bit better, instead of focusing on the other products. Focus on your own, what features do YOU need? Build for that and let your customers guide you product. At your lower price point, you might be attracting customers with different pain points than your other higher priced competitors. This way you are solving your problem but your journey might take you on a completely different path. Use their features as inspiration but not necessarily your own road map.