...You can not have a coin with no max supply ever maintain a steady price. It has been proven over and over in the real world.
That is true except when it is not

Annual gold supply is just over 4,000 tonnes per year, with roughly 60% coming from miners and 40% from recycled gold (unlike industrial silver, gold is almost completely recovered and recycled back into above ground inventories).
I'm not a gold bug by any means, but $369.00 stuck under a mattress in 1996 would still be $369.00 - an ounce of gold would be worth a bit more. So as long as NYC does not inflate as fast as USD it has a chance.
Year Close
2015 $1,060.00
2014 $1,199.25
2013 $1,204.50
2012 $1,664.00
2011 $1,531.00
2010 $1,420.25
2009 $1,087.50
2008 $869.75
2007 $836.50
2006 $635.70
2005 $513.00
2004 $435.60
2003 $417.25
2002 $342.75
2001 $276.50
2000 $272.65
1999 $290.25
1998 $288.70
1997 $287.05
1996 $369.00