You'll learn more about flying from flight instruction then you've ever learned in formal training.
Your CFII and MEI are priceless.
Apart from becoming a better pilot you'll also not have to pay for valuable IFR/IMC and ME time.
Also considering the following:
Each PPL student will get you 5-6 hrs of cross country. That's 100 private students trying to get to 500 XC.
An instrument student will add 5-6 hrs of XC time on an IFR flight plan and some IMC.
A CPL student will add another 4-5.
MEI is the most dangerous form of flight instruction but it will hone your ME/SE skills.
You'll see this back during sim training at your next employer.