Change wands to 10 charges and reflect prices accordingly - OR allow crafters to make either a 10 charge or 25 charge variant of a wand. Allows more flexibility and 25 charges is a lot to buy in one go.
Well I think that's the point, compared to scrolls. Making them 10 charges is also a fairly big nerf since you can only carry a pretty small number of wands.
While this will end with everyone and their mum having a dispel wand at the ready I think it's still a good idea.
Wands seem the realm of the haves and have-nots right now. Only the most fabulously wealthy will have them.
Having a sliding scale of charges vs. price system would be great. Possibly setting it at a minimum of 5 or 10 to differentiate them from scrolls. Then even your most medicore mage can have a brace of wands including dispel, stoneskin, lesser spell breach etc for PvP and difficult PvE.