I think many people work hard at amassing tons of stuff on the server. Then it just sits in chests taking up space or ending up in the lost and found. If people could buy levels, they would have a good reason to sell more blocks in local shops and spawn shop. What a great boost for the economy! Of course players like Hootowl would probably drive his nation and town into bankruptcy within a week , many would love the option to buy levels for enchanting and such. It would also be a great boon to the merchants side of the server here!
Merchants and Marauders Minecraft