Why can't I use different programs on different computers?

Question

Yesterday we bought two CC subscriptions for me and my colleague. We both also work from home sometimes so I replaced my CS6 software at home with the updated software for the programs we use (Photoshop, Bridge, Illustrator and InDesign). For Acrobat, we stick to Acrobat Pro 9 because our Pitstop Pro license would be too expensive too upgrade for the new versions.
So when another non-prepress colleague today asked if it was possible to add the company letterhead on top of the digital invoices, I thought: why not install Acrobat XI on his computer since neither me or my colleague uses it anyway - neither at work or at home. To my surprise, Adobe does NOT allow this??? It seems CC ties the entire subscription to computers instead of separate software to computers because the minute I tried to activate the software, CC complained and activated "trial mode" on Acrobat XI saying I was already logged in at the maximum amount of computers.
This doesn't seem right to me - surely it's the amount of times a program gets used that counts and in my case, Acrobat XI doesn't get used at all so why aren't we allowed to use it on an extra PC? We pay for the program after all!!!!

Answer 1

Suppose you and friend go to an all-you-can-eat buffet and each of you pays the rate for an adult buffet.  Several items in the serving area you don't eat or don't like, but kids or friends back home do, so when you're finished with your meal you ask for a box to take home the unsampled items at the buffet for others back home.  And when the establishment says, No, you go home and post an angry review about how they are unfair and monopolistic and won't let you take as much food as you want home with you for what you paid for the buffet.  Maybe you do pack your bag with extra food and feel entitled to it and even plan your family's meal budget around how much you can steal from the buffet, but I'm guessing not, and just accept buffet pricing without bad feelings toward the restaurant.
You want three people to share 2 licenses.  That's against the rules.  Rules that seem reasonable to me.  You're getting many Adobe applications for the price of 2.5 applications.  A single application is $20/month while the full suite costs $50/month.  You are welcome to buy each application you use for $20/month and have your third colleague use Acrobat for $20/month.
Adobe is not going to let you use any or all the applications in the suite for the price of 2.5 applications and also allow you to give away the unused applications to others, letting them avoid paying their own licensing fees.
To resume the buffet metaphor, Adobe has priced their all-you-can-eat (use) buffet (suite) at the cost of 2.5 entrées (apps) and doesn't allow you to take home (give away) leftover items (programs) for others to eat (use).  You are welcome to buy each entrée at its own price and take home as many as you buy and let others eat them.
If you feel Adobe is making too much money with their buffet and entrée pricing models, then you're welcome to buy Adobe stock and get some of that extra profit for yourself.