green slime said:
Boots of striding: +10 to move, +5 to jump 5,500 gp...
or slipper of expeditous retreat: +30 to move (granting a +12 to jump) at 4,000 gp...
Seriously, you have to put a little (just a little, it doesn't take much) thought into this. EDIT: Crap, that sounded really bad. I didn't mean anything by that, so I apologize in advance if it came across this way. My bad.
First, remember the DMGs guide to magic item creation...
compare your new item to what's already in there.
Second, look at the boots of striding & springing and break down the cost...
+5 competence to jump -> 2,500gp
2,500 - 5,500 = 3,000
This item looks like it follows the additional powers guidelines in the Behind The Curtain, rather than going by the table, so that means that adding +10 feet to your base land speed would probably cost you 1,500gp on its own. But, because its a secondary power, its increased by 100% in price.
green slime said:
or slipper of expeditous retreat: +30 to move (granting a +12 to jump) at 4,000 gp...
And by following the guidelines of the DMG, which say to compare your new items to the ones already there, you'll know whether or not your price is accurate. After all, we already figured out that adding +10 feet to your base land speed is about 1,500 gp.
So, breaking down your slipper...
+12 to jump -> 14,400
Well, we already know something's wrong with the price of your slipper. Its too low. The item creation guidelines aren't flawless, but I can't agree that they're "shot to pieces". Don't get me wrong though, I wouldn't mind something more comprehensive.
(Any minute now someone should be swinging by to shamelessly plug MEG

)