First you spend all this time trying to get to know this person (oh, I mean you read all his papers, or at least the short ones), you talk to them, get to know them more personally, go home and meet their family (yes, I know group meetings are nothing like home, but ... focus here ok?) and then you decide if you want to get hitched. Keeping in mind that you are going to be together for eternity (ok, so only five, six, seven years... but who is counting), for better or for worse, or for worse and worse...
It is important to know how well he is going to treat you. And of course how much money he has. Yes, his money is important. I mean how else you can buy all the big toys you need to play with and food (you know ingredients for reactions). Sure, you go telling me that love (the project, his reputation, etc) is all that counts. Wait till you have to go out and earn your keep two years down the line. The man I "married” made me go out into the wild two years in a row (note the connection between my students and the wild) Have I mentioned how much I love grants running out ?(Hey, Selly, don't be bitter. TAing is not so bad...)
But I deviate. Good luck choosing your advisor (for those who were too involved or confused in my convoluted analogy to realize).
