I had a Suunto Cobra that died the first time with less than 50 dives - still under warranty so I got it replaced. It died it's final death with less than 100 dives. My husband's also has died once and he no longer trusts it even as a backup. I have a Datamask that has a little under 200 dives and the transmitter died (got it replaced for $120 and I'm back in business). So I'm wondering just how many dives (approx. 50 minutes each) or how much dive time should we expect to get out of a dive computer and/or transmitter? For reference if we were told that our laptops would only be good for 200 hours of use I don't think we'd be willing to spend much money on them. But maybe this is an unfair comparison because our laptops don't have to function under a couple of atmospheres of pressure - maybe that pressure wears out the components much more quickly? So I'm wondering what is "reasonable" for life expectancy?