Ok, so I am assuming you are not a business major, well, might be hard, probably in High School??
Well let's start with a simple example:
Little Julia wants to be a singer, so she practices really really hard, and one day, finally gets a live concert gig. Nothing fancy, small venue, maybe a hundered people max or so. But, luckily for Julia, there just so happens to be music manager there that night scouting some new up and coming talent. We will call him Ted (that's a good managers name I think).
Ted talks to Julia after the show and lets her know she has some talent, and maybe has a future in this industry. Julia gets really excited, goes home calls mommy, ya know, the usual celebration.
Ted goes back to his music company and immediately books a year long world tour, a gazzilion CDs, talk show bookings (Oprah, Heraldo, David Letterman), the works!!!
HMMMMM, doesnt sound right does it???
No, it doesn't sound right, because that's not how business works in these types of industries. True, Kevin is a great artist, and it is very impressive that DnD are backing him and supporting him, but seriously. This basically the first real, promoted, produced, collection of works that Kevin is releasing. Any smart up and coming magician, who is hoping to release material, would not start from a DVD. Only the little kids who dream of making it big quick, without putting in the mileage, think about releasing their first DVD. A smart person would release a manuscript, see what kind of reaction it gets, then plan from there.
HMMMMMM kinda like what DnD did????
Get some years under you belt, think logically for a second, stop being so D*** defensive, open your eyes, and then you might understand.