Well , It Depends on where you buy it at , Actually.. Everywhere is Expensive soo..
It can be worth about 20$-30$.
Lots unless it's charizard G
none just catch them on Pokemon leafgreen and firered
i bought a lvlX Garchomp for £10 and went on to sell it for £15.
if you got it out of the tin then its a promo it wouldn't be worth much right now maybe in a few years but if you pulled it out of a booster its worth any where from 10-15 dollars Hope I helped =p
rayquaza, no doubt
proboblay 10 pounds
u can't get a lvX Pokemon in diamond version
Well it all varys from where your plaaning to buy it from. Ive seen some cost 50-60 dollars. But a really good price would be 30-35 dollars xd
YES
There are many Pokémon much stronger than Infernape, such as Rayquaza or Arceus.
no