I am thrilled that ESO is sticking to their guns and keeping a sub based system. Yes, F2P is nice, but F2P is only nice when you're waiting for a REAL game to come out that you want to pay for, like ESO. I just don't view F2P games as real games, they feel more like casinos to me... all flash, all superficial, no real content to keep you there, but the SHINIES!! Oh, the shinies are everywhere!!! It's all a distraction, and fabricated addiction, to get you to basically give handfulls of cash for non-existent things that could disappear at literally any moment.
F2P, to me, equates to greed. The devs making F2P games aren't making a game because they love games, they are making it because they are exploiting the addictive qualities of games and they want to make money.
Sub games have traditionally had full expansions once every year or two (EQ is still doing them even now!!), to breathe life into their games, expand the lore, expand the character options, and just expand and fill the world. F2P games give new ponies to ride, top hats to wear, sparkly squirrels to be your best friend forever (all for a price, of course), but did you see that pony over there, it's RAINBOW!! I want a rainbow pony! Oh, it's $20? Well, okay, it's really cool, I guess that's okay... I mean look at all the stats it gives me, and it's so sparkly and pretty!!
I'll stop now. :P