Should I make this purchase?
This is almost never about the money. It is about what the thing is standing in for, and that is a question the cards answer well.
Five cards, so the reading can separate the want from the reason and still tell you what to do.
We'll read this as: What is this purchase really about for me?
Cards that often come up
Four of Pentacles
Held tight, and slightly harder to move because of it.
The Devil
The chain is loose enough to step out of, if you look at it.
Six of Pentacles
Enough moves from one hand to another, in the right proportion.