I thought the prize was for hitting a certain tier in the vending achievements. Was this changed recently?

It's only for 50k vends. Originally, when the achievement first came out, it was given for several of the tiers, but it was changed not that long after.

Ah ok. So I do remember correctly, but it was since changed.

Can you believe I used to have a mini vending machine and I USED it? Ugh. Dumb!

There are quite a few items that I wish I had just safely stored away for future use... I know how you feel!