That's because many crafting components, and even alien corpses, can be used for many various upgrades and item purchases. Unlike the previous game, there are no items classified as damaged, or useless. Selling stuff to the Black Market can leave you in a jam.

They can be very handy in a jam, but again, be mindful of how much Intel you are spending.ДЄ word of caution though. With that said, the Black Market often sells crafting items, weapon and character upgrades, as well as research boosters. The items it offers are purchased using Intel, so you must purchase carefully, as it's a very limited resource. The Black Market returns in XCOM 2, however now you can buy and sell to it. In the previous game, you could sell various pieces of alien tech for money. By having those Resistance Comms already established, you can expand your influence quickly and easily, preventing this scenario from ever happening. This can be a huge issue, and can even cost you your playthrough if you're not careful. Alien Facility missions can spawn anywhere on the map, even in regions you can't access. Most importantly though, you open up that region for potential missions. You gain additional money for doing so, and also open up the chance to obtain region specific upgrades. No matter how you plan to play, or the difficulty you're on, contacting other regions should be one of your top priorities.

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