@Robert Tinker a lot of investors are willing to pay the high prices counting on long term appreciation and future cash flow rather than immediate cash flow. That mixed with heavy competition has driven property values up, and rightly so in my opinion...competition is the key to a healthy (though frustrating) market.
Also consider the situation of a cash investor who is just looking for a tax haven for his/her money. The numbers they need to create positive cash flow are significantly lower than an investor who needs to finance the property and worry about making a monthly mortgage payment.
As far as San Marcos is concerned, (I live in San Marcos) there is a good rental market here but with some challenges of its own. For the most part you wont find the "on market" deals to be much better cash-flow-wise. However, there are plenty of houses here in need of a good renovation. You also have a captive and infinite tenant pool with the students but there are city zoning ordinances that prohibit student occupancy in certain areas (This is designed to keep the frat-house away from grandma and grandpa Jones) it complicates things. Also, in my experience, students have not been tje best tenants and most of them are looking for 9month leases so the can go home for the Summer.
To create positive cash flow consider larger down payments to reduce monthly obligations if possible. Your cash is safely parked in your home. A heloc can then be a good option to access cash when you need it.
I'll send a connection request if you want to explore some "out of town" options...Good Luck!!