Really depends on 1. game experience and 2. portability.
For instance, I have been trying to 100% Castlevania Portrait of Ruin because 1. its a fun game and 2. I can take it with me, so when I have 5 minutes in my day I can whip it out and farm monsters for 1% item drops and then turn the game off easily.
For instance, I have been trying to 100% Castlevania Portrait of Ruin because 1. its a fun game and 2. I can take it with me, so when I have 5 minutes in my day I can whip it out and farm monsters for 1% item drops and then turn the game off easily.