Crab,
When operating to numerous rigs/platforms offshore you might have the next deck only a short distance away (5 nm in our case, which is only about 4 minutes from wheels off to wheels on). That extra few knots gained by retracting the gear isn't going to make much of a dent in the flight time but leaving the gear down can add up to a whole lot less gear cycles over the day, month, year, etc.
On the short legs there is the unwritten rule that you have to exceed 130 kts to justify pulling the gear up. eh Steve!
