Oh and a multi-million dollar portfolio is not very impressive when you have a multi-million dollar loan.
Exactly. With resi property I'd rather $2m worth of property with little or no debt than $7m worth of property with $5m of debt. It's fine (i guess) to keep on buying, but at each stage you are incresing your risk with each additional loan. Even if you are cashflow neutral it's still a big risk. I'd hate to be very sensitive to interest rate movements.
I remember a little while ago one prominent forumite being sad with only "4 mortgages" You'd think this was the last thing you'd be worried about.
I'd rather live of the rents with a smaller portfolio as soon as possible than having a large portfolio with a large loan hoping for this to occur at some future date (while hoping the portfolio is still intact ).