What to do with the house sale proceeds?

OK, we finally closed on our old house in the Shenandoah Valley today, and have a nice $73,000 check in hand.
The plan is to roll the profits into a large down payment on the next house. (We are renting right now.)
HOWEVER, just think of what I could add to the collection!
So what does everyone think is the right thing to do?
Options:
1- Find a 1872 Amazonian pattern, and go out to dinner with the $50 I'd have left. Who needs to buy a new house? Stay renting!
2- Spend around $20,000 - $30,000 on a nice 1872 proof gold coin, and accept a higher mortgage with the smaller down payment.
3- Roll all of the money into the next house, and accept the fact that I'm the type of collector who views $1,000+ purchases as VERY rare occasions.
The plan is to roll the profits into a large down payment on the next house. (We are renting right now.)
HOWEVER, just think of what I could add to the collection!

So what does everyone think is the right thing to do?

Options:
1- Find a 1872 Amazonian pattern, and go out to dinner with the $50 I'd have left. Who needs to buy a new house? Stay renting!
2- Spend around $20,000 - $30,000 on a nice 1872 proof gold coin, and accept a higher mortgage with the smaller down payment.
3- Roll all of the money into the next house, and accept the fact that I'm the type of collector who views $1,000+ purchases as VERY rare occasions.
Robert Getty - Lifetime project to complete the finest collection of 1872 dated coins.
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