Why do I see pretty much all these masternode coins popping up and getting listed on the same exchange? That's the only exchange entertaining them and nobody else. What is especially so different about these new coins that make them standout? Nothing new in the roadmap and devs loosing interest half way through when they have made decent money out of the premine.

The million dollar question then - are you not going to mine off a quick 1k coin and join a shared node on each?
If it does happen to be the next serious committed team of devs you'll pay your mortgage off for a week of your gpu power. Luxcoin being a perfect example.
Any masternode coin that hits the exchange is worth the initial punt, especially when mining has dropped off.
Agree partially with your point, looking at what Dash did last year, but that doesn't warrant buying into all the MN coins popping up every single day. Its also hurting the whole MN concept since too many coin clones are coming out every single day. Do we really need these many coins?