More options doesn't automatically equal better. Only being able to exit left/right adds an extra thing to think about actually (for me) - to access river plots you still have to pick which side is best in case of mountains in the way.
I can't see any way of saying one option is better than the other, they're just different.
Lets see if I can explain this to you. We are not really talking game options but depth of play
More options(possible decisions) in a game equals deeper strategy. Deeper strategy equals more challenging game play for players as they become more experienced.
Example
You are a new player you are doing well exiting the store left or right. You start playing better players who are utilizing that depth of play and are exiting the store top or bottom to avoid those
mountains that may be in the way. These better players are getting out 1 or 2 more mules then you. They are kicking your ass because of this. You are challenged! You now start to learn that having 4 choices to exit the store lets you get that extra mule out giving you the edge over less experienced players.
I hope this helps you see how more choices in game leads to a better game.
Also, its not just about choices or making a decision. You also have to execute your decision with hand eye coordination to leave and enter the store without catching corners, etc and loosing precious time.
You take this away and you are making a less challenging and entertaining game then planetmule
Its always a joy in planetmule to watch your opponent flounder or succeed in his development phase putting pressure on you to execute your development flawlessly.
These type of options in a game still leaves the game accessible to the masses but adds depth and challenge to the game attracting and retaining players longer.
I hope this helps you see options as something more then just something extra that you have to think about!
Rhodan