Good, specific info, thank you.
I bought a MTD Kingston 6 string from Amazon at about $800 on a list price of $1450. There was one left according to the site, at that time. After I bought, there was suddenly still one left, but the price was $1400. So yeah, timing is everything.
Reminds me a little bit of how Sam's Club schedules its price drops, it's a formula based on number of purchases/buying activity.
In this case what can happen is that the MTD was on special offer on Amazon by Amazon and soon as it was sold, it was available again but from a different supplier. Still on Amazon but not from Amazon. Most -not all- very good offers are from Amazon as the supplier. They just wait for the last MTD on offer to be sold until another supplier fills in the empty space, at a different price. My 2c but I have noticed this a couple of times