I think AU and BU Standing Liberty Quarters are going to be hot investments. This is a hunch. Also, early commems should go up sooner or later.
Neither are likely to substantially outperform. AU SLQ are "collector" coins, not "investment" and most US collectors are presumably worse off now than they were years ago, just like the general population. As for BU, depends upon what specific grade you have in mind but I don't see any catalyst for them either. The gold coins certainly isn't one, just as it isn't for its Mercury dime counterpart. Early commemoratives are a "crap shoot". I agree they will increase eventually but years from now, don't expect them to be winners either but "dead money". They only seem cheap compared to their prior prices which were the result of the TPG bubble.
World colonial - regarding SLQ's, I am thinking MS64 or better. The gold Mercury Dime is way overpriced right now and will drop significantly next year - just like the Baseball HOF commems
I've done much better than that with gold sovereigns, Mexican gold, and the last Czar's gold coins. If a collector wants something bad enough he/she/it will pay for it.
Tempus fugit, Latin for time flies. Tempus fuxit, time flew. Reminds me of a sign at the entry to the cafetreria: Fidem scit, Latin for he knows the faith. Then there is "Homo scit," the man knows.
Congratulations, I guess, for seeing the price go up by $95.81 when the price of gold has increased by $130 or so. Unfortunately, I don't think you can calculate "investment return" by comparing retail prices, because it's difficult if not impossible for an individual to sell at retail prices. You could probably get about $1380 for it selling to Provident.