Having now tried both these games and paying approx $20 a shot each, I can thoroughly recommend people to beware even playing them for free.
I, personally, struggled to get any sense of enjoyment out of either and, given my time back again, would choose not to play these time-wasters even if they were free.
I know I probably sound a bit troll'ish here, but I'm really not trolling. I tried both games with the hope and desire to enjoy them and gave both of them a good long fair shot, but they're both so… sleep inducing.
I don't even know the reason why I don't like them. I played both for a good many hours and then just stopped, with the intention to play them again the next night, as you do, and then just never went back to them.
They both seriously lack the addiction factor that is so crucial for gaming, and I'm not talking about gambling mechanics. You know, that thing where you hurry up your dinner in between gaming sessions and forget to have a shower in the morning because you log straight onto the game. The whole forgetting how long you've been playing and then notice its getting dark outside kind of thing.
Just none of that at all.
I can see why some people like them I suppose, but my personal recommendation would be to not waste the time at all rather than fuss over the price.