They double the speed and give a +10 competency bonus to Jump checks, and there is no longer a height limit to jump distances. Not bad for the original 2500 g.p. market price!
There still a must buy at 6000gp, just a must buy of a slightly higher level PC. Movement has a huge effect on combat(part of the reason I rarely go with the tank fighters) and doubling your movement ofr a measly 6,000 is an abusrd value.
