Also, what are some other low cost amenities that I can add to my STR that will yield a higher ROI?

However, be cautious about focusing solely on low prices.

@Collin Hays My favorite that came in at 6am one morning when the nights low temperature was 58 degrees and the high temperature was to be around 75 was the following.

Low probability but high risk.

Quote from @Bonnie Low: It doesn't have to be condos or apartments necessarily. 

This plan covers 24/7/365 troubleshooting services from Lula's experts (such as guidance on resetting a circuit breaker), tenant coordination for scheduling repairs, and access to a network of vetted professionals.Once you're subscribed to Lula, you can set aside a pre-approved amount for repairs, which can be used without needing to contact you as well.

Yes, there's a shortage of low-cost housing in West Palm Beach and Malibu and Portland Oregon and Asheville NC and other places people want to live.

I was able to figure out that they had come upon some hard times and were significantly low on cash.

And it's a rather low bar to get over for anyone wanting to continue to wholesale. 

Time overcomes low cash flow to some degree... rents go up while your mortgage stays the same and your tenant pays down your mortgage.