Fact is, blimps SHOULD come back. They use far less fuel to move far more mass and volume an equal distance when compared to planes. That savings can either be passed onto the consumer or used to improve services. For travel, costs will be about the same by distance, but you will get a roomier area, better service for that price. In terms of moving cargo, blimps are the way to go (compared to airplanes), especially if they stick to blimps that are lighter than air.
Things that can go wrong in a lighter-than-air helium blimp are basically limited to very non-whole-craft threatening things. If the engines fail, they don\'t crash out of the sky automatically, afterall.
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