Green Man Gaming CEO Paul Sulyok believes Tuesday's EU ruling on second-hand digital sales will make cloud gaming a less attractive prospect to consumers in the long term.Sulyok, whose company allows consumers to download games then trade them in for credit against future purchases, warns that, while the practical effects of the ruling won't take effect straight away, a future in which players are able to sell on their digital copies of games easily could have a negative effect on the market for streaming games.