Correct. Currently people look at real estate history to predict what will happen in the domain name market, and to learn investment stratagies.
For example, if you have 10 acres of land, and 1 of them is unbuildable (a steep hill), if you group it with the other 9 acres, it will still sell within a timely manner as long as it is at market price. If the one bad acre would be sold on its own, it would take ages until someone actually finds a need for it.
Same could be applied to domain name investment. If you have 9 really marketable domains and one which there is no market for, you can group them all into one profile and sell the profile, which would generate more volume on the market and better liquidity on the investment.
If you just sit down and study some of the tactics used in real estate investing, you will see that these tactics are picking up in domain name investing.
Generally speaking, the tactics are being picked up so fast that it seems that in the near future domain name investors will be developing new tactics which could be applied to real estate (and any other property-ownership investment). No other investment vehicle is exploding so fast in growth, it literaly grew to where it is now in just about 10 years. (Do we have any seasoned investors to correct me?).
We still havent seen the emergence of domain name financing

However, some companies are already giving out loans using domain names as collateral. I think it will come.