I just searched casio A1000 on amazon, and there's even cheaper actually.

https://www.amazon.com/dp/B000GAYQJ0

A158

Do you know the difference between the A158 and the A1000? And don't say it's 842 :D

The A1000 line has a metal case, while the A158 has a resin case that is chrome plated. They might be a different size, and they have different specs for weight and battery life. The A1000MA is kind of a buy-it-for-life-grade version of the A158 that recently came out.