Maybe, maybe not. The thing about Curly/flame Maple is that its a renewable source - it literally grows on (or should that be in) trees. Its not like oil, coal etc that is more limited. With the right management and the fact that 'wood' is being used less and less in other areas, there is the potential to have curly/flame Maple for ever. For every tree cut down to make instruments, another can be planted. I don't know how long it takes a tree to reach the 'right' age for 'harvesting' but its possible to have a sustainable source for Guitar woods. As long as new trees are replanted for every tree cut down, then the likelihood of running out, or even the quality dropping is reduced. The circumstances that create flamed and quilt top maple is better understood now. I remember hearing Paul speak about some maple that was grown from the 'seed' of curly maple that didn't grow up to have any flame at all so they understand more the cause of the patterning. That then helps those that are growing maple to ensure they meet the criteria to end up flamed or even quilted. Its possible that we may find a time where the quality isn't as good because this discovery about the causes of flame/quilt, may of come relatively recently and so it may take years for the trees planted after this to reach maturity for harvesting. The trees that do meet the criteria may well be in shorter supply whilst the new trees are growing. As long as trees are replanted though - whether that's Maple, Mahogany, Rosewood etc, they can have a renewable source for the raw materials to make quality instruments. The more research they do on trees, the patterns they form, even the grain and resin that make the 'best' instruments - whether the tree grows 'slow' or 'fast', what conditions they grew in etc can be replicated to ensure a never ending supply because trees can be grown specifically for harvesting for instruments. Unlike food crops which may well be grown yearly for harvesting yearly, trees may well be grown for harvesting many years from now, long after many of us have gone but, with the right structure in place, trees can be grown specifically for harvesting for instruments. As long as every tree cut down has a new tree planted, there will ALWAYS be resources (unless some disaster occurs). Because of the better understanding of the conditions needed to grow flame/quilt maple, the chances are that they could actually get more quality figuring. Have a higher abundance of figured maple specifically grown for the purpose.