This list is entirely based on my personal experience, and can vary according to your spouse or girlfriend. So no guarantee that your geek wife would be as geeky as mine, but I can assure you that you will definitely have lots of fun having one.
10. She is smart.
She will always have some interesting news, which you have missed. Your conversations can be long and interesting, and you can talk about WoW, Jedis, Diggers,web two-oh, and the new Star Trek Movie.
9. Can be easily motivated to turn their hobbies into full blown cash machine.
For example, if she likes shopping (name a girl who doesn't) she can be be easily convinced and motivate to build a blog/site/portal around it. And you be assured that she will leave no stone unturned to convert it into a financial hub.
8. You can distract her easily in fights
Whenever you get into a fight, you can start talking about latest trends, technology and all other geeky stuff. She will in no time, will either start searching for it on her iPhone or on the next closest workstation in her vicinity; completely forgetting the reason why the fight started.
7. Great sense of humor
Geeks are witty and have a great sense of humor. She can make techie jokes around everything. Being around a geek is always fun.
6. Geeks are excellent parents.
Firstly because your geeky wife will pass her "smart genes" to your kid. Secondly she is always innovative in raising her. So don't be surpised to see your 18 months old kid handling iPhone or your laptop perfectly.
5. New ways to communicate.
You will always have a new way to communicate with her; Gtalk, Twitter, Facebook, SMS, Email. So there will never be an communication issue.
4. Engaging
Geeks can be engaged in meanigful discussion like why Star Trek themed Home Theater is better than Terminator themed home theater. They will always have enough information to discuss on most of the stuff relevant to you.
3. Movies.
You can watch Transformers, Ocean Series, Simpsons with her anyday. You can even watch Star Trek and Star Wars multiple times without being called out childish.
2. She knows technology.
She will spends hours with you unlocking and jailbreaking the new iPhone version and enjoy every moment of it.
1. She is respected in the community
She will be interviewed and acknowledged by her peers and will occasionally win few awards for her work and knowledge. You will share some of her accolades as being identified as their better half.