Job security!......
What you experienced is rampant in the U.S. and I'm sure in other parts of the world. Most people in business, like contractors (try and get a free quote to build a porch on your home, they'll charge you at least $25 bucks to come out, if you give them the job, they tell you they'll decuct it from the cost), automotive, boats, motorcycle and a whole host of other companies, don't want you to fix, repair, or build something yoursel. They will tell you they don't have it available or just right out "no can do" because they want you to have no other recourse but to have you bring it into them. That's their job security. Come on, $90 bucks an hour in labor charges, ........that's freakin ridiculous. If you asked for the fogging spray in the spring, they'd have probably sold it to you. There was no demand for it because it wasn't winter time.
I had an experience a couple years back, before I found this forum that I'll tell you about real quick. After I bought my boat, I needed a throttle cable. I called the local Seadoo shop and they had one, but it was $179 bucks.......I almost passed out. I told the guy again, "I think you misunderstood me, I need a throttle cable". He gave me the same price, then told me he'd have to order it and it would take a week or so. I told him never mind. So, I tried to figure something else out. Then, I thought about ebay. Well, they didn't have one, so then, it occured to me that I'd do a google search. That's when I came up with an online parts distributer. Long story short (or shorter), I found my cable for less than $100 bucks and thought, I bet this guy was going to order my cable from the same place and just inflate the price for his own greedy self..........
I have only used a automotive repair shop one time, for my transmission and that was it. I let my guard down, got screwed out of $700 bucks for the transmission, that still wasn't working right when I got it back, when I could have bought one from a junkyard for less than $150!..........:rant: