Bobby - The Whirley Pop folks sell the same kind of packets. In fact, that company you posted a link to does private label sales, so Whirley Pop may even buy them there. Good stuff.....although if you just use oil and kernels, the popper doesn't even have to be cleaned -- you just wipe it out. Very handy while camping, not as big a deal while home obviously.
I think if I watched a movie before breakfast, I'd still have to have popcorn.
Dave