I'm personally fine with NOT buying at a cheaper merchant somewhere else because I know:
- Amazon ships fast
- Sending things back to Amazon is free and fully automated
- If something breaks in a year, Amazon will usually replace it without a big hassle
- I don't have to get another account at another merchant that will save my password and credit card data in plaintext
- Amazon packaging is great
- ...
There is more to a purchase than just the product itself