OK, let me help you out, please send me the link to this free snake.
Let me see, another snake or a wife... Tough decision!!!
You could always find a friend to take the snake for you and then when the time is right you'll have your snake!!!!
Everyone on this forum has a different kind of marriage than I do, I just can't believe that their wives are sticking their noses into their husbands hobbies to the point that they are limiting what they can get. I don't tell my wife she can or can't have anything that she is interested in. She loves to travel, I just let her go to the middle east by herself because it was her dream, not mine. She lets me have as many snakes and rats and mice as I want.
Here's another plan: Figure out how you can make money with your snakes by breeding them or breeding a few rodents and selling them. That way the more you have in your snake hobby the more money you will make to support the family. All of my hobbies either break even or make a little money, that's a huge plus with my wife! If your hobby drains the bank account even a little that can cause a huge stress on a wife, I've seen it many times.
Also, at the end of the day before you do any of your snake business spend some time with your wife first to let her know that she is the priority. Even a half hour just sitting down and spending time talking is huge. Works for me!