There are some relatively small regionals like NYIIX where you won't find many large carriers, but they still have their own little nitch markets.
There's been rumors of NYIIX and PAIX-NY linking up like SIX and PAIX-seattle.
It's not a rumour. PAIX is interconnecting with NYIIX as soon as the fiber engineering people say that the photons will travel end to end.
* Price - In these times of cost conciousness (and transit available for less than the price of peering), many people are taking a step back and realizing that PAIX services are OUTRAGEOUSLY priced vs the competition. Some big carriers are turning down their PAIX switch ports, even at Palo Alto.
Which is why I was surprised that Paul offered PAIX-seattle connectivity for a $300 one-time charge for those who are already connected to SIX.
We aren't silly, and since it would be silly to fail to recognize that some peers want/need different service levels than others, we recognized it and are acting on it.