I have repainted an entire set of kitchen cabinets before, and it was a total pain in the rear. But the end result was a dramatic improvement. I do not like the waste of ripping out and throwing away perfectly good cabinetry just because it appears outdated.
So, anything you can do to upgrade what you have rather than replace is a good thing, in my opinion. You may be surprised by the finished product. This article makes the job even easier by teaching you how you can paint them without sanding or even priming. Enjoy your newly revitalized kitchen!