Considering how many unseeded episodes are floating around out there, good luck.

I've had no issue getting any episode of anything. You might just be looking in the wrong places.

You should be downloading season packs instead.

Why would I want to pirate when the company making it will take me money?

Because they have a habit of removing stuff, and/or retro-actively censoring shows to fit in with whatever the latest witch hunt is. :(

I've not had this with anything I've "bought". If it were confiscated I certainly would have no qualms in downloading a copy.

If something is removed from netflix, that's fine, I'm not paying to buy things I watch on netflix - I'm paying to rent them. I wouldn't copy them any more than I'd copy a VHS I'd rented from blockbuster back in the day.

This. When all else fails, and this is the only way, then it is the way. I, too, am more than happy to pay $ for a high quality physical media, but if they aren't satisfied with my one time purchase, and instead choose to force me to pay for each subsequent rewatch if that is what I desire, then they will no longer get my business, and I'll find other ways to get what I want. Why should I not?