If you and your wife have never tried venison before I would recommend you find a source for a few pounds of wild venison to try before you make the time/money investment into hunting. It would suck to spend $1000 on gun, tag, time, and butcher fees just to learn that you don't like the taste. And it definitely has a taste, I wouldn't call it bad, but it is different.
My family only accepts my venison ground in recipes with plenty of seasoning e.g. pasta and tacos.
1 deer will definitely supplement your meat diet, but it won't allow you to maintain the standard American 1 meat item per lunch/supper diet. I killed 2 deer this year and I ended up with about 130lbs of meat total after butchering and jerky. That was on private land. Expect less success on public land.