Whitman wrote:
I have no idea why you'd pay to play an online game to solo, but whatever floats your boat ;-)
This one's easy. You don't want to be saddled with other people's issues. Someone else's ornery/colic baby needing constant attention shouldn't have an impact on your playtime (via constant afks). A person who has 30 mins to play but doesn't tell you that until you get deep into a zone 20 mins later, isn't something you have to deal with typically, if you have 3 hours to play. People who refuse to group with certain classes because "that class sucks!" isn't something a soloer has to deal with.
Bottom line, if you want other people around (to profit from via bazaar or to group with
on your terms), soloing in online games is ideal. Can't do that in Fallout 3.
Mercs are really useful for soloing (though the tank merc begins to suck post-70, due in large part to the gear/discs available to 71+ tanks). The cleric merc is useful all the way to the cap. You could solo to 85 plus 1k or more AA with the cleric merc (it's been done).