Dear MikeThanks for joining our forum.
The Pitts is still a great airplane and has not outlived its time! You can fly and enjoy a Pitts for years in many levels of flying - from sportsman competition on up. The Eagle is also a great airplane, but as I've never owned one, perhaps some others can shed some light on the major differences.
In competition flying, it is still the pilot who has to make the airplane look good. There are some who think a monoplane makes it easier to look good, but I can tell you from experience, a monoplane can only do so much for you. Actually, a Pitts can make a pilot look better than a monoplane because the lines are shorter and you can be a degree or two off without it being seen by the judges - unlike monoplane.
But, first, please...before you fly a Pitts - SPIN TRAINING is of the utmost importance!
Have fun,
Patty