My first vehicle MANY years ago was a 2wd Jeep. If all you are looking for is a daily driver and the only off pavement driving you will be doing are dirt roads, then this will be fine. If you are planning on modding it out just for looks, this will also be fine.
If you plan on doing any serious off roading with your Jeep, then it must be 4x4. With a 4x4 your mods. will have a purpose. if you only have 2wd you may get yourself into a jam you will need traction on 4 tires to get out