No one would dispute the benefits of having a dual-monitor setup when it were one person.
Imagine you have your IDE on the primary display, coding away breathlessly, comfortably knowing that the secondary display has all the oxygen you need for your next inhalation, letting you hold your chain of thought, reassuring you conquest of the problem, boosting your confidence, which would have otherwise been crippling (relatively speaking.) It makes programming so much more blissful. When I said oxygen, I mean at least the following:
- program output (web browser if web development,)
- debug watchers and immediate windows,
- SQL query analyzer/profiler
- keyboard shortcut or other cheat sheets,
- language references, etc
In paring, having four monitors for 2 programmers is a bit redundant, because three will do the job by placing the secondary display in the middle. And it doesn't even need to be as nice as the primary. I recommend one with a TV tuner.
Just saying...
Hao (not a budget maker or the treasury)