Sometimes things break, especially launch units, it's not always a sign of a mass problem. My launch Vita had to be returned because it tried to melt itself in my hand. My replacement has no such overheating problems and I've never met anyone else whose vita did that.
I'm more than happy to believe the OP and at the same time be skeptical that this is a widespread problem.
I'm more than happy to believe the OP and at the same time be skeptical that this is a widespread problem.