To get a premium account you just need to purchase some TP in a way that is not a giftcard. So the price on that can actually vary quite a bit. I think the minimum amount of points you can purchase is at 8 US dollars, rounding it out. And once you make the purchase, your account will always be premium, no matter if you never buy points again.
I believe VIP subscriptions cost about 10 USD a month, but they come with a lot of perks, too, like unlocking almost all of the game's content, plus a monthly 'allowance' of some TP, and other such things. I don't know the specifics, as I do not have a VIP account.
As for accounts that have never bought anything from Turbine, I can kind of see why they don't feel the need to compensate them for a 'loss', as nothing material has been 'lost'. Those accounts have not sunk real money in (as far as they can tell), nor have they lost subscription play-time like the VIP accounts. They approached it from a strictly business point of view, and I can't blame them for that.
[COLOR="#8B4513"][MY ALTS] [B]Balvur[/B] warden/ [b]Hallti[/b] guardian/ [b]Hila[/b] burglar/ [b]Elenauriel[/b] runekeeper/ [b]Dolmifaynar[/b] minstrel [/COLOR]
I speak my mind because it [COLOR="#B22222"][i]hurts[/i][/COLOR] to bite my tongue