What benefits your son is continued, CONSTANT contact with his FATHER. If you think that that's not important, then you go ahead, move to Texas, leave your child in Wisconsin and YOU visit your child since your husband will have such a great job. You'll be able to afford to come back whenever you want, and it'll be cheaper to buy one ticket as opposed to two.
Somehow, I see this as not being an option for you - but you'd like to make it an option for this child's FATHER.
In this instance, I would suggest dad lawyer up now and fight you on this until you either decide not to move or leave the child with him and I wish him good luck.