I'm wondering if STR is at a point where it's difficult to enter into a market due to the saturation of STRs/competition. 

Some markets are saturated or will be soon.

AirBnB is a bit saturated now in many markets and you need a very unique property to maintain 2022 levels of income

It certainly has a better buy-in than many other more saturated markets but can be particularly tricky when not knowing the area.

I am at that point of knowledge saturation and ZERO steps toward action other than looking at all the listings.

The 2023 quota was hit really quickly and 2024 is also done from things I have read.Scottsdale is pretty saturated now, but here are the rules around STRs - https://www.scottsdaleaz.gov/c...

I’m not worried about saturation either.  

Over the past few years there has been LOTS of development of apartments in the area, but from what I've seen and/heard there is enough continued growth in Durham that the market's not likely to become saturated anytime soon.  

His apartment is saturated with pot smoke.

.- Saturated ground caused some leaks in the basement that weren't there for months prior.The rest was pretty smooth.