I have the same thought as most people here whereby we can always tether it to our phone and have been buying WiFi models only for many years. Recently bought a cellular model for a good price and the convenience is really a plus point.

If your iPad only stays at home then yes by all means get the WiFi model. However if your iPad does leave your house, even if it's only once in a while, I would recommend getting the cellular model. If you've never bought a cellular model, try it at least once, then I believe it can help you decide better for future purchases.

Yup, at least you tried so you know for sure that getting the cellular model will be a waste for you. I believe this is the best way to cure this dilemma, get a cellular model and try and if it's not helpful then can decide on WiFi models in the future.

For those who always have this dilemma, it's better to try it out and conclude it once and for all.

Also, there's always a saying it is better to have compared to not have and need it.

Nobody knows what's best for you, only you yourself can determine. I also noticed countless of such polls asking whether to get WiFi or cellular model, and most of the time it ends up pretty even.