The learning curve, which roughly goes like this:
1. Hear your friend talk about her cousin who's making a living "off that domaining thing.
2. Google up "domain trading."
3. Visit GreatDomains.com, see the prices listed there and decide that domaining is for you.
4. Go to GoDaddy and register a bundle of names.
5. Drool about becoming rich overnight and tell all your friends that you're quitting your regular job because you will be a millionaire in a week and kiss all those working-class suckers good-bye.
6. The night on which you register your friend domain and list it on Sedo, have a dream about receiving a $500,000 offer for it. Be very upset when you wake up and realise that it was a dream.
7. Log on to Sedo and discover that no one has bid on your domain.
8. Start visiting NamePros and other forums asking for appraisals, expecting to see people falling all over themselves to get your domain name, of course after they appraise it at high xx,xxx minimum.
9. Watch people tell you that your domains are worth reg fee, low xx at best.
10. Contemplate suicide.
11. Register a few more useless domains, which turn out to be worth xx-xxx. Congratulate yourself on doing better and spend the weekend emailing prospective end buyers.
12. Finish typing this post and tell everyone that the worst thing about domaining so far is how easy it seems at first to make money off domains. It is only after registering worthless reg fee domains that you eventually come to realise that domaining is not easy money at all and that it will be a long time before you get one of your domains listed at GreatDomains.com.