For example, DIRECTV charges $20 a month for every month remaining on your contract. So if you need to get out of your contract but you still have nine months left, you’re looking at a cool $180 plus a $15 deactivation fee. It’s steep, for sure, but it’s all in the contract agreement. Make sure to ask your provider about early termination fees before you sign, just in case.
The question of "when does it make sense?" can easily be rephrased as "how much money can I save?" and one of the biggest factors will be the price difference between combined internet and TV service or just internet. These are also the options that vary the most widely based on where you live, and the availability of promotions or contracts that can keep prices down for a short time.