[myth-simba]

It can be hard staying active on a game.
What if you were involved in an accident and had to be away in hospital for months or your pc broke?
Your house would be gone by then.

Why not introduce a house recovery thing?
Basically you tell staff member the reason you were inactive and then you have to remain active for a set period of time the staff tells you to (not too ridiculous though) and if you still active by then he will restore your house for you to 10% so you must go and repair it at once.

The last thing anyone should be thinking if they are lying on a hospital bed is "will my gk house still be standing?"