Card shows
Price a bundle without guessing
Checked

Bundles are common at shows. A seller offers a stack for one price, and it is hard to tell whether the deal is good when you only know a few of the cards.
Add every card to the bundle
Use Show mode to check the cards together. Confirm each printing as you go so the total reflects the cards actually in the stack.
Look at the evidence for each card
A bundle is only as clear as its weakest price. If one card has a stale or missing price, the total is less certain. Holo Folder keeps unknown prices unknown rather than filling the gap with a guess.
Decide what you actually want
Sometimes one card carries the bundle and the rest are extras. It can be reasonable to ask for just that card, or to offer for the stack based on the cards you would keep.
Open your collection