Besides being able to check the box and receive your license after you take the test, the class will contain loads of applicable knowledge and skills that you can carry with you and build upon your entire career.These are just my two cents gained from listening to podcasts and reading books and blogs.

It saves on wasted phone calls for both parties.

Roofs are designed to handle snow loads that are disbursed somewhat evenly across its entire surface.

In general if I send my agent a vacant property that's doesn't seem like it's for sale an I wasting my time?

I do see some random staging for really weird spaces, but other than that, houses fly off the shelf and it's kind of a waste of money.Maybe you could do a test?

It is an inconvenience for the current tenant, it doesn't usually show well and in my experience (over the last 10 years), it ends up being a waste of time. 

Cars are something many Americans waste money on, but they are typically singular events.

Am I wasting my time by trying to track down the homeowners and making them an offer?

You need to show them a finished unit (not tell them) ready to rent.I don't even show a "work in progress" for this reason (it can waste time and lose good potential applicants). 

The Investor-to-Agent relationship is a bilateral one, no one appreciates having their time wasted or monopolized.