Yes, of course moving would be an extra expense and involve downtime. This would be weighed against the risk of losing it all due to CCP invading, either through destruction or just being seized.
[Total Equip Loss Cost] * [Probability of Loss]
vs
[Additional Cost of Moving] + [Additional Cost of Downtime]
[Total Equip Loss Cost] * [Probability of Loss]
vs
[Additional Cost of Moving] + [Additional Cost of Downtime]