I'd honestly rather download than pay a monthly subscription fee for a service I will hardly use. On top of that, the only seasons they'll have available (probably for a long while) are season 1 and season 10 (I think it was season 10, not too sure). The only movies they're going to offer for now are the Victini and Reshiram/Zekrom movies.
They're going to need a hell of a lot more than that to warrant a subscription from me... I did a trial subscription of Netflix a while back and wasn't very pleased with their overall selection. They probably hold back on trial memberships. Honestly, that's a bad decision. If you want to wow the user into paying for a full subscription, you should show them the bulk of your offerings, not hide the majority of your content from them so they don't even know what you have.