I think 3 peices of flat steel ( a mulch kit) for $300 about takes the cake for me. I bought the steel locally for $8 and 1 hour later I was mulching. Some things like trimmers for $300 bucks are a great deal and others insane.
I can think of an area that oodles of money is spent and most products are made to be sold and not used. With the exception of a couple new poisons and old reliable traps a lot of money is blown off trying to get rid of moles.
And these are good reasons some of your bigger LCO's are removing lawn maintenance all together. Not enough money is being made. Yes sure you can buy a ZTR for $10,000 but you have to also include schedule maintenance, and someone to operate it, were talking lots of money for a $60.00 lawn job.