"I have at least 3 props, I purchased back in 2000-2003 for...

"I have at least 3 props, I purchased back in 2000-2003 for average 150k's...they return 10% or 15,000 pa each gross....mv is double now"

Comparative rental return has to be calculated on the current asset value after costs:

So 150K in 2000 at 3% inflation is $195716 => 150*52/195716 = @6.5% nett discounting capital gain in real terms.

Rental return at today's prices is < 3%.