Should I bring them inside, pot and all? When? Wait until a frost threatens?

I found this from the link below so would say to bring them in to let the foliage die off naturally.
about storage
The bulbs should be dug before the first frost. Time permitting, the leaves should be allowed to dry up and fall off naturally. This allows the nutrients to be absorbed by the bulb. The leaves may also be removed by cutting them off close to the bulb, being careful not to cut into the bulb. Any cuts or tears into the bulb increase the chance of fungus/rot during storage. Ideally, the bulbs should be stored in flats in an area that is going to stay at 70 degrees or warmer with good ventilation. If space is limited, the bulbs may be placed in mesh bags with peat moss as a separator. Check bulbs periodically for softness or rot and discard. Bulbs can be replanted in the spring.
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But the other caladiums are planted with things that don't decline (ivy, dracaena, impatiens, sweet potato vine), but live in the house all winter. Do I still dig up the caladiums? Do they need a rest period, like the tuberous begonias seem to?
Now I am just guessing here, but I think since they can live year round in the ground in warmer climates that they would be fine, left in the pot with other things growing in it all winter. Undoubtedly, you will be cutting back on the watering during the winter anyway, right?

Sue

Here is a link that might be useful: Good info from Caladium World