Yes, but I actually did start a few weeks before the spot fleet was launched. The problem with the spot fleet 1) it's kind of awkward to use 2) it has static

Yes, but I actually did start a few weeks before the spot fleet was launched. The problem with the spot fleet 1) it's kind of awkward to use 2) it has statically defined capacity so you can't scale it 3) it has a static bid price, so if at some point your are outbid on all the group's bids, you end up with no capacity 4) among other things it lacks integration with the ELB so you can't really use it for so many use cases. My solution is simpler, better integrated with the rest of AWS and more resilient and once I iron out the bugs and get it production-ready, it should be a better choice.