Miguelli - When I first got serious about RE investing it was about 2005 and the market looked a lot like it does today; prices were very high and cash flow was very low. Almost nothing penciled out and I wasn't interested in buying properties with negative cash or banking on the possibility of future appreciation.
So I resisted buying bad deals and pretty much sat on the sidelines from 2005 to 2009 and continued to build up cash, contacts, my credit score, and my RE knowledge/education.
After the market crashed in 2008 we went on a buying spree from about 2009 until 2015/6 (buy & hold) until the numbers didn't make as much sense as the prices started creeping up again, rent prices were flat and many competitors started entering the marketplace.
Today feels a lot like the 2005ish market with very high prices, and very low, cash flow. On the plus side of where we are; rents have really shot up, we have far better RE investing tools, as well as better software and knowledge. But there are many more investors chasing every deal that's out there, repair costs are much higher, taxes are much higher, insurance is much higher, regulations are starting to become a bigger issue, and of course interest rates are an issue.
So for now we continue to hunt for deals, but most do not pencil out. In the meantime we are building our resources to be ready for the next market reset (if it comes) so we are prepared to go on another buying spree if sensible opportunities present themselves.