It is possible to dig items over level 500. The chances are low, but it is possible.

I believe people can obtain level 2k gear. There are some special items that can't be dug up.

Just the other day I was "helping" justj99 as he helped another player. (I was pretty much supervising him.) The player had the quest to search for the weisstein, but I believe it was "mountain's heart" that was translated as "cherry."

You won't get as many items digging as you do fishing, but that's mostly due to how digging works. When digging you will get 9 piles of dirt and then a chance for an item. When fishing each time you catch something there is a chance it is an item.

A muchos magos les gustan las áreas cercanas a las pociones de maná. Las arañas del mapa 1.3 son populares, ya que puedes comprar pociones en el vagón del mapa 1.2.