What do you think? They're a sound investment choice IMO. Get one now for $10k & in 15 years the value is likely to be much higher. I've also seen some domain names being "rented out" contractually, so LLL.com owners can make their domains available for monthly or yearly rent to generate extra revenue. And all the while the domain's value keeps getting higher & higher...
Its definetly an investment to do this. The only thing is that its expensive to grab them up and rarely for sale. Last three letter domain that I seen (all letters) go for a decent price was 6k BIN on these forums. That was a few months ago.
Maybe something called banterbex, I know it sounds wierd right now. But Internet sounded wierd to the 80's people as well. However, coming on topic, I'd like to say that yeah these LLL.coms are very good investments if you can afford to buy one. They are surely going to have some great value in future. IT