Depends on how confident in your exploit catalog and your ability to find new exploits is. Quantifying the value of the collected data is almost impossible because it can quite literally be priceless. Imagine you can understand geopolitical strategy of a major adversary before they execute it...

Being non persistent also reduces your exposure on secondary payloads though. If I was a nation state with nearly unlimited resources, I would also monitor the mobile networks as well, which could give you a good idea when the jig is up.