Well, out of 10 normal seeds, you would average 5 males. Out of 10 feminized seeds, you probably wouldn't have 5 hermies unless you did something wrong. If you don't stress them, you should get almost no hermies. Even if you got one or two hermies for every 10 seeds, it seems like it would be worth it. You actually end up saving money in the end, when you add up the costs of soil, nutrients, pots, space (therefore lumens, therefore electricity $$), and everything else that get's wasted on the plants that turn male before you end up throwing them out. My first few seed orders were just for the regular ones, and If you wan't to do any breeding then of course don't buy feminized. But after I got good breeding stock, everything since then has been Feminized and I think it is actually gonna be saving me money pretty soon. The cost of feminized is usually outweighed pretty quickly by the cost of growing plants that turn male, and don't get used for breeding purposes.

I've heard that Greenhouse offers "hermie free" feminized. I figured out the process to do this, but it is long and i dont wanna take up any MORE space than this post already is. Anyway, since they won't even answer e-mails from the US, I have no way of confirming that. I'll be trying out some Hawaiian Snow Feminized after this current grow, I'll let you know. Also will have some Big Bang fem and Himalaya Gold fem that will be ready at the end of summer. Sorry I can't tell you any more till then, lol. Anyway, this is just my opinion, hope it helped.