Bill, you make that money back pretty quickly, maybe not on the surface but -
When you have 30 people in line for service, and it's a race against the clock to get there, because you know they are calling every company they can find one after the next while they wait, having 1 hr to set up, vs 2 hrs playing with power runs, gets you to more homes faster to plant your flag.
I can get twice as many fans in one load on a truck, so that eliminates at least 1 trip, possibly two for each van to run back to the shop to re-stock.
Also saves you from having to turn around 90 minutes after setup when the dehu/s hit their first defrost mode and knock out a breaker or two.
It's those days where you can get 30 jobs vs 20 because of the time saving things you put in play that pay for the more expensive toys.
Heck, I'm probably buying a vac pack for every Hydro x so we can eliminate set up / tear down time on the TM's