I just know we are getting stuffed in the rear everytime I think how much those axials are going for retail $400 bucks, (focus or force-9's).
100 fans sometimes is not enough, $400x100 is $40k - that's a lot of dough, and if you get a good size basement you can easily do 25 fans in there, that's 4 jobs. Now you get a major storm go thru, and the phone rings non stop and you cringe. I've started to realize that as much as I want nice fans, I should start buying smaller cfm centrifugals @ half or a third of the cost of the nicer axials just to be able to get those extra jobs when they come in, since not every job will need 3500 cfm's at every 15 lf spaced out, and the $5 bucks difference on Xactimate is not that much of a difference. Took me a while to comprehend since I always want the best.