RetroUSB cart collecting is a thing now?

[mic_]

Link to the auction

In case the link goes dead in the future: someone is asking $1600 for the RetroUSB 8-bit XMas 2008 cart.
I realize that things are worth exactly what someone is willing to pay for them, but come on! This isn't even a friggin' game! It's just a cart that plays a couple of christmas carols and blinks some colored LEDs.

*sigh*

[NYMike]

I wish I got my hands on some of these at cost. Great for nostalgic music but the 2x 4x 5x 10x price difference is down right ridiculous.