Boardwalk is a bit of a beginner's mistake anyway. Looks and sounds really nice; but no one really wants to see you get the set, (you can usually get a better deal out of giving the set to someone else in exchange for a better placed group of properties), and even though there's a chance card that directs you there, people hardly ever seem to land on it.
my strategy is to secure an inexpensive set from the left-hand side (preferably oranges). Even if you have to complete someone's green or dark blue set to complete your orange, you usually end up ahead: you have houses and hotels much faster - and can usually bankrupt another player before the green set is up and running.
Owning orange & red is an almost guaranteed win.