I'd be concerned with the blower motor assembly crapping out and/or clogging up. Real commercial grade tables like the Dynamo brand have commercial grade Dayton/Grainger blower assemblies with air furnace filters. The Dynamo is built to last and is priced accordingly. Can't say the same for the table you bought.
Also, a real air hockey table weighs considerably more, in the range of 400 pounds.
Unfortunately, real commercial grade tables come with real commercial grade prices...I haven't been able to find anything for a decent price in over a year...luckily I'm using it at home, and hopefully it won't have to endure the abuse that the real tables do...
I thought about adding a filter to the motors...I don't think it would be too difficult, considering the way they are mounted...there's a metal frame that holds them in place and I think I could fit a filter in between, if I use some spacers or something...I just have to find something that won't restrict airflow too much...
I also thought about the long term...I figure I could find a suitable replacement, should the motors ever go...there are some electrical/electronic supply stores around here...maybe even use motors from a real table and make them fit somehow...
For the sake of 133 lbs, I don't think it'll make that much difference in my basement...I don't plan on having people jump on it, or abuse it like it was sitting in an arcade or movie theater...I'm hoping at most that people will lean on it a little while playing, but that's all...
Ken, was your post meant to show the differences between a real commercial grade unit and this one, to tell me to expect problems or do you have actual experience with this particular model of table? I'm not sure I understand what you're saying...