I try to buy direct from Cathe when I can. Sometimes it's just not possible, as it seems it takes longer for some reason when I buy direct from Cathe's website, I have no idea why.
One way to look at it, is each new DVD or tape Cathe makes a profit on. Where as ebay, someone has already payed Cathe so when you buy it, your basically just giving them their money back. So in a way you did give Cathe her percentage, but you don't get the garentee. And if you ran into the person my client did, you can get a fake DVD that looks like the real thing but has a purple back, meaning that it's a fake and Cathe made nothing from this DVD except from the original.
Personally I prefer to support Cathe as she works hard for all of us, and from a few book author's and how crappy their *royality* the money they get for each book sold is. I much rather give what I can to Cathe. For a good book author, they get 10% royality fee from the cover price. So if said book is $20, they make $2. I have no idea what Cathe makes off the DVDs, but I'm figuring it's probably a percentage like this. As there is a lot of cost that goes into it. As you got to pay the crew, the filming staff, the editor, the cd maker, the cover artist, and so on. And I figure everyone bought directly from Cathe will help drive down cost for later workouts, as more demand means lower price. Which is one of the reason, I hope that the Target thing really goes like a wild-fire, and everyone wants Cathe DVDs, and i'll be able to collect them at a faster pace. Okay so I'm selfish... but I like her workouts.
Kit