Diabro, gold is hoarded by an elite few, governments of rich developed countries. Britain sold half it's gold holding in 1999, 415m tonnes for $8bn. Note the comment in the article below that this left Britain with less gold than any other major country.
http://www.telegraph.co.uk/htmlCont.../08/ngol08.html
My use of gold is an analogy, I think it's a good one because gold and domains are an old economy and new economy store of value, both get hoarded, both are coveted because they are scarce and look pretty, both can be "developed" ie into jewellery or web sites or held in raw form, parked or in bullion.
Your question about .com is nonsensical. .com is top dog so no extension is "better" than .com. I gave you the option of hundreds of alternative extensions, alot of which are lightly regged by domainers, all you had to do was come up with one that was heavily developed because of the availability of premium keywords.
I think you have to make a distinction between squatting which implies illegality, for example regging a non-generic trademark and trying to extract money from the intellectual property owner, divert business, or dilute their brand and genuine domain investors who buy generic keywords. Virtually all .Pro domains registered are generic, the owners are investors in the extension, not squatters. They may hoard on a small scale but accumulation is the essence of capitalism, if you don't like it you should move to North Korea or Cuba.
There are no prizes for guessing I have a vested interest in .Pro, I paste it in my signature. It wouldn't make sense to spend so much time writing about .Pro if I didn't have a vested interest. I enjoy promoting .Pro, if people like you help me promote my .info's as well, that's a bonus.
I think the fact Registry.pro went cap in hand to ICANN to amend their registry contract and plan to "relaunch" the extension on 14 July suggests they acknowledge making a pig's ear of launching .Pro first time around.
Instead, of getting put out by "squatters" and "hoarders" you should reg some .Pros while you still can. It's a gTLD, extremely brandable, and you'll kick yourself 10 years from now if you miss out.