wildcat48, I think you said it perfectly. I think that within 5 years, the AHL will either implode back to more regional divisions, or every team will be within an hour's drive of their NHL team. I don't even think Hershey will be safe. I think the league will even be re-branded as NHL-2 once the teams are all in their parent markets.
As you can see, the Northeast void is already being filled by the ECHL, but the ECHL is still tainted by the NHL (to a lesser degree). They are limiting themselves to 30 teams, and they have imposed the same "development" rules as the AHL (really a rule to keep salaries down, but the PHPA has become comfortable enough with it).
I think there is an opportunity for a different style of league to take root, either by the ECHL becoming more independent from the NHL, or by a whole new league sprouting up should the ECHL hold firm to its 30-team plan and its pretending to be a "development" league for the NHL. A league that isn't AAAA like the IHL, but is truly AAA hockey as opposed to AAA-development hockey.
As a fan, the familiarity of players is a big thing to me. I'm not one of those guys who hangs around trying to meet them - I simply mean understanding who they are on the ice, knowing what they are capable of doing when I see them. That is why this past year in Springfield was lousy - I had no idea who these players were since Arizona was a new affiliate. That's why I'm trying to objectively describe the situation that I perceive - that the AHL today is churning players through faster these days.
I have started going deeper, and I am a little amazed at the wide differences between teams in the league. For example, in 2015-16, the Lake Erie Monsters had the most NHL experience on their roster, with 2,880 games played by their players prior to the 2015-16 season. The Texas Stars had the least, with 183 games. That's not a typo.
Grand Rapids really focused on player retention - they had 72 man-seasons of players who had been with the team in prior years, including Jakub Kindl [7 seasons], Brian Lashoff [6 seasons] and Tom McCollum [6 seasons]. Ignoring the teams involved in the affiliation swaps (Lake Erie, San Antonio, Portland, and Springfield), the Chicago Wolves had just 22 man-seasons of players who had been with the team in prior seasons - seven players who had been there 2 seasons each and eight players who had been there only the prior season.
Regarding pro games played, Utica led the league with 10,013. On the other end, Texas had 5,142. That's a huge difference.
Regarding lower-level games played, Chicago led there with 2,010 games - meaning players who primarily developed in the ECHL. Lake Erie was at the bottom with just 379.
I still have to go deeper, perhaps game-weighting some of these numbers so they work better on an aggregate level (if Vancouver sent down Daniel Sedin for one game, it would show up as an additional 1,143 NHL games with their totals). I will continue to refine this.