A property leased to Apple for 30 years will command a much higher price than a multi-tenant office building with similar rents.

https://www.macrumors.com/2018/03/20/apple-flagship-chicago-store-for-sale/

If you are planning to pay back HELOC within 2 years, lets assume you would need 130k for down payment to do the apple to apple comparison and plan to pay back in 2 years. 

If you're comparing apples to apples when trying to decide then, sure, the higher return is the obvious choice.

I just choose to be on the debt side and let all you land lords handle the heavy lifting..

This was my third auction and i felt really good about a few properties so i pulled the trigger and got one I was asking questions, some i knew or had an idea of the answer, to get some opinions from people on here who have been doing this stuff longer than i have as I have no mentor. other than those that do this for a living I think you have a good handle on this.. not that complicated and your UBER lucky to be bidding in that environment were the heavy lifting is done for you up front.. many jurisdictions are MUCH MUCH tougher and riskier.. 

This is the only way that you can truly get an "apples to apples" comp for any house.

Now I do no section 8 and typically have good tenants, but still a few bad apples. 

Deal with bad apples quickly and fairly.

Much simpler and they can be screened by professionals without you lifting a finger.