After watching me play, my brother would also like to purchase the game, but he has an older laptop, and cannot be sure that the game will be playable and/or have an acceptable frame rate.
I badly want him to try it, but he (perhaps rightly) can't justify spending the money until he can verify that it would run acceptably.
I bought a digital copy of Diablo III, and consequently wasn't given any Guest Pass keys for him to play the Starter Edition.
What are our options?
I can only think of one: re-download the game on his laptop, and sign in with my account. However, I'd prefer if I avoid this, lest there are any restrictions on number of activations, etc.