is there enough randomn shit and side quests to keep you wanderin the sandbox for a long ass time???
loads of random shit like that
in fact i think i've spent more time doing the random shit than playing the actual story (even though the story is good)
examples of random shit:
animal hunting (and animal hunting challenges which unlock stuff)
treasure hunting - you get treasure maps with picture and clues about where the treasure is buried
random events for example, a guy has his horse stolen and asks you to get it back or a guy is being attacked by wolves and you help him
stranger missions - you meet strangers who offer missions to you which are not connected to the storyline, most of these missions have a funny or wierd ending, always worth seeing
bounty hunting - you find a wanted poster and go out and capture the criminal for a reward
outfit finding - for each outfit you have a list of tasks to complete to unlock it
gambling - blackjack, poker, liars dice
the list goes on...
you can also do gang hideout missions where you have to clear out a gang hideout and theres is even a ghost town, complete with a haunted mansion to explore