I love these offers... Ever crack open the terms and conditions link? Here's where it gets really fun!
It typically takes 12-20 days for them to get the package, and the "14 day free trial" period is regular days, not business days usually. The actual cost of the shipping is typically no more than $3-$4. When you want to get your refund during the "90 days risk free" period, you have to go through a whole theme park of answering services, customer support reps that don't speak the english, and sales people trying to upsell you on other shit. Oh yeah, I forgot to mention that the $39.95 fee is almost always billed per month. It's all covered in their mountains of legal rules that they don't show you on the sites either, but that you usually have to email or snail mail a request for.
This is how they can afford to pay affiliates $30-$50 per SALE (this is not a lead you fools, a lead is something where you don't need to pay for a product/service or use any type of credit card, wire, debit from your account). The advertiser here ends up making around $300-$400 per sale per year until they are forced to close the person's account and stop billing them.
This is exactly how the magazine industry works too, except with them, the costs aren't as high, and they are fucking PROS when it comes to pissing people off when they want to cancel the payment. They've also mastered the art of not allowing chargebacks, and forcing you to find the cancellation area, otherwise your ass gets billed nonstop. Mail order magazine business that is..
So the moral of this story is... if you're going to bank off of a reeeeally shady business, may as well reap as much profits as possible as the advertiser instead of as the affiliate, because these guys make MILLIONS a year, and guess what... it's not illegal (maybe not deemed as LEGAL or ETHICAL but it's not illegal).