Box Cake Mixes

I was overly shocked to find out that A LOT of people use box cake mixes and add to it. If I had a confused smiley it would go here -->  .  I understand finances and timing is a factor. But I can bakemy own cake if it's coming from a box. Like really, how much stuff can you add to a box mix???  Well to each it's own. I'm a from scratch girl all the way! ;-)