What some people can't grasp about .pro is it's not the absolute that matters, it's the relative. Buying a .pro is like buying a share in a small company that nobody has heard of, buying a .com is like buying a share in a Fortune 500 company that everbody has heard of. For $1,000, you don't get much of the Fortune 500 company but with .pro you get alot more as a %. For you to double your money with a Fortune 500 company a company has to got from a $50bn valuation to a $100bn. To do the same with a .pro, the company has to go from $5m to $10m.
Since I started registering .pros, total domains registered have gone from 6,000 to 48,000, an eightfold appreciation. Registration fees have gone from $100 to $20 and with the recent announcement of the drop in wholesale prices to the level of .com, registration fees could fall further in 2011. I registered domains like Gadget.pro and Piano.pro from the WHOIS in 2007, now Tea.pro sells for $1,700.
The fact that SSL.pro sold for $2,600 should be celebrated, 3 years ago you wouldn't have got $100 for that domain name. Either somebody applied for SSL.pro during the request for proposals and got their application rejected or it was down to putting .pro in front of a bigger audience. When people registered top .coms in the mid 90s, .com was as little known then as .pro is today. You don't get anything for nothing when it comes to investment, there is no guaranteed strategy, it's a question of judgement.
Although I share InvisionTech's frustration, I accept that this is what I bought into, a hopeless registry with uncommercial restrictions and almost non-existent distribution channel. However, when I started registering .pros they had all this plus they weren't sold by Network Solutions and eNom, there were no Namejet or Snapnames auctions, restrictions were even more draconian, and registration fees were $99.
I agree with InvisionTech's strategy. I am always looking at what to drop. I dropped Poem.pro and Poetry.pro this week, nice keywords in .info, for example, but they don't fit with what sells in .pro in my experience so they had to go. My logic is if you drop an average .pro, you can afford to keep a better one for twice as long. However, balanced with that, if top .pros like Mortgage.pro and Loan.pro come along, I'm still a buyer at Snapnames prices.