........Buy a lot of boomboxes in the next two days?
Well, you're either going to need very deep pockets, and buy every box on eBay,
or sell your shares in eBay and buy every box from there, or.....
approach some collector and offer over-the-top, absolutely ridiculous amounts of cash which would be an offer that the collector simply couldn't refuse.
I wish you the best of luck in "buying a lot of boomboxes over the next two days" as it takes a lot of collectors many years to build a collection.
Paying for the box is only a quarter of the story......Finding the box to buy is the other three quarters of the challenge!
-BoomBoxDeluxe.