i think it would be nice to have oportunity to protect your house from robbers and raiders .
lets say 5-10$ per month and your base is under sherifs protection . maybe not all base just stake claim is invulerable , but whole base is better . many people have no oportunity to log in for 2-3 months due to work or other circumstances . and they gladly will buy providence sherif security service + many people will be happy to see their investments such as diffrent packs or tools , gardener pots to be safe . town bell will cost more mb 50$ . because whole city can donate to help mayor to pay for bell . if no one pays for it bell is not invulerable anymore. byt when summ reaches 50 for example bell becomes invulerable . again , many people will gladly pay for protection when they are raided