You are right about the chitty idea, but decent .com names are dropped every day. (You need to scout for names every day though, but will become a nasty habit in no time.) I have found that people, outside of tech, will remember weird, odd .com domains. I got people to remember physibles(and how to spell it.), and these were senior citizens. (I guarantee these people have never been on the mother site either!)

I tried a different domain with a .io domain; and it just wasen't worth it the effort.(they knew about .net. ,org, but that's it.). There's almost a anger that comes up when a domain ext. gets to specific, like .photography?