Agree 100% The N-Trig pen is the one weak point on this system.
Lack of button customization, requires a battery to function, and most frustrating to the artist, the nib wears out
fast, NO purchasable replacement nibs either (They aren't sold through MS Store or N-Trig's site)
I've had my Surface Pro 3 for about 72 hours, in that time I've done maybe 15-16 hours worth of painting, and already I'm seeing some fraying on the nib, and I'm not using excessive pressure while drawing with it. Prior to the Surface I worked with a Wacom
intous tablet for 6 years and in that time I only had to replace a nib once.
I know you can call customer service and they'll send you a new nib, but still, why should we have to call customer service, send them a photo of the nib, and then have them dispatch a replacement when it could just as easily have shipped with a few replacements,
or the ability to buy a pack of replacements from the MS store.
I'm sure this pen is great if all you do is jot down a few notes during a meeting, but for a dedicated artist it blows. Add to that a lack of alternate pens that will work, and it really brings the Surface Pro 3 down to a 'second best' in terms of graphics
tablets. I would rather the Surface was thicker and a bit heavier but used the Wacom digitizer over thinner with a substandard pen/digitizer.