Bettman became commisioner in Feb 1993
http://www.infoplease.com/ipsa/A0109007.html
Two teams were added in the 1993/1994 season. These had to be in the planning well before Bettman took office.
4 more teams were added later during Bettmans term.
http://www.rauzulusstreet.com/hockey/nhlhistory/nhlhistory.html
4 teams X 82 games X 14,000 fans per game (estimated) X average ticket price of $41.56 (2002) = ~$191M in new league revenue.
That is about equivalent to a $5 increase in the average ticket price in a 30 team league.
30 teams X 82 games X 16300 average attendance X $35 average ticket price = ~$1.403B
30 teams X 82 games X 16300 average attendance X $40 average ticket price = ~$1.603B
As far as I know, Bettman does not tell teams to raise their ticket prices, they get to do that on their own. So, yes much of the revenue increase has probably come through increased ticket prices, but there were also increases in TV contracts up until the last contract signed. Bettman has more contorl over getting TV contracts for the league than ticket prices.
Again, the glowing puck was goofy, but the biggest complaint from no hockey fans is that it's too hard to follow the puck. They tried, it failed. In the big scheme of things it doesn't matter. But if a million more people watched hockey because of the glowing puck, we would still see it today. As for upsetting hockey fans, it was only on FOX. You didn't have to watch it if you didn't want too.
The two ref system is terrible. Having the linesmen call penalties behind the play is a good idea too. But how do you get refs to call penalties when they decide they would rather just let the guys play. To me, getting rid of all the clutching and grabbing will make games much more exciting and probably result in more people watching and attending the games.