Alpacamood wrote: do you think its normal?
As mentioned above, it is normal, it is a side effect of Wacom's "paper-feel" tablet surface which works a bit like fine sand-paper.
Alpacamood wrote: is there a way to conserve nibs??? please help!
You can tape regular office paper on top of ur tablet's work surface. It won't affect tablet's performance in any way, but will prevent surface scratching (which some people seem to experience) and slow down nibs wear (given u use smooth paper).
IIRC Pro uses same nibs as Bamboo, which is just a thin plastic rod. So u can just replace them with improvised nibs made of toothpicks. Just cut a piece of toothpick to the length similar to wacom's nib and work it a bit on fine sand-paper from all sides, also rounding one tip. Wooden nibs wear off significantly slower and I personally preferred how they felt on my tablet.
Or just order spare nibs from China. Don't buy from Wacom, they charge crazy $$ for simple pieces of plastic. Or do, it's ur money after all.