There are many possible answers to this question. The bigger answer is that anything is worth whatever you can get for it. But I'll try for a more precise answer.
If you had a Tony Hawk signed skateboard from 2013 and it was selling in an auction to raise money and awareness for a good cause, like cancer prevention, there are people who would pay thousands of dollars for that board. If you put that same skateboard on eBay, it might sell for as little as $100, or as much as $3000.
If you had a Tony Hawk deck, the one that he landed the first 900 on in 1999, signed and certified, that board might sell for as much as $50,000. This is an arbitrary answer but it is based on evidence and knowledge of the Skateboarding collectible marketplace.
If you had a Collin Provost Toy Machine model signed by Collin, it might sell for $50 or less, just because he is not as well known yet.
Other boards that might be worth more include anything that was ridden and photographed or otherwise documented, especially a momentous occasion. For example, a board that was photographed an on the cover of one of the skateboarding magazines by a well-loved skater such as Mark Gonzales, would sell for more, probably over $1000.
Also, any skater who has passed away, or otherwise unavailable to sign more boards, would increase in value.
A signed Gator board would be worth thousands.
A signed and authentic Jeff Phillips board would be worth thousands.
I realize that I haven't given a specific answer, but I don't feel that one is available, because there are so many variables.
The simple answer: anywhere from $5 to $50,000.
It depends on how old it is
rttrttrrt
from £70 to £120 depending on the make
yes
No
ima be a pro skater!!
No, you are only a pro if YOU are scratched up, sometimes, you can be a pro and not be scratched up if you are a SUPER pro
This is probably the rookie card you have when Roy played for the CANADIENS its worth at least 300$ and if its signed maybe 1000$
it doesn't matter on wha t skateboard it is it matters on the tricks and skills that you do. and if your a pro skater or sponserd you will phashow be on something better than walmart LOL
Probz around $300
One should wait two years to purchase a Pro Skateborad. Most people who use a ordinary skateborad are not even that good to even get to Pro level, so better to wait.
Train,train,train.Oh,and get the best skateboarding equipment.