Would you spend 85 dollars for a piece of the Berlin Wall?

No, Berlin wall is worth nothing, besides you will have a hard time vouching for its authenticity. Ich bin ein Berliner.

If you really want, its a piece of history, i would say go right ahead

Ahahaha. No. You have no way of knowing that they're not just sending you a piece of a cinder block they took a sledgehammer to in their backyard, and no one you show it to could possibly know that you didn't just do the same. Save $85 and grab some broken concrete off someone's driveway or sidewalk.

I don't think so; there are much more things you can do with 85 that can be put to great use

No.It will be a wastage.

I will sell you a call option on a piece of Trump's wall.