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No way! :) Dear friends, we need to decide first if we even need this. If we implement the idea of buying land, that's one thing, if it's about special artifacts, that's another... And mixing everything together, in my opinion, is not a good idea!!! Otherwise, we won't properly develop either one...
This is not an answer.
:D If we are going to use three parameters - Rating, Rank, and Money.
Then all categories of players should be able to spend money.
But it should definitely not be possible to buy rating with money.
And one doesn't interfere with the other. If there's a land shop, why not have a shop with artifacts?