It’s not every day we’d recommend picking up a Samsung device while waiting for Apple to make its move, but there’s an exception to every rule. Samsung’s U28D590D 28-Inch Ultra High Definition LED Monitor ($700) will be available on April 18, 2014, likely before a 4K monitor makes it out of Cupertino. The price is almost certainly lower than what Apple would charge, too, making this an especially appealing option for users…