Installation is standardized and fast. They can be started and shut down at a moment's notice, and can be throttled up and down depending on load. They're efficient and reliable, and burn a fuel that is, comparatively speaking, pretty clean. They come in different sizes.
so is the biggest problem with them the special docking gas tankers need, and pipeline security?
they're still flaring off great plumes of it with no gain, right?
how long will it last, or is that an oil drum question? ~"When an inner situation is not made conscious, it appears outside as fate." Karl Jung~