[eitally]

I disagree completely. Another benefit of traditional on-prem vendors is that it's a lot easier to get source code escrow written into the contract as a force majeur or bankruptcy contingency.

I was going to reply this to a different guy, but in my experience the risks of the in-house app going out of maintenance due to dev attrition or whatever are far lower than most people think. Stuff that's business critical is almost always staffed appropriately, and stuff that people perceive as business critical but actually isn't is usually the [large group of small apps] that aren't well supported. The big problem is the rinky dink Excel macros, VBA/COM+ add-ins, and random isolate single developer crap that nobody knows about except the end users.