the number one reason you should get a cellular enabled iPad is find my iPhone.
t-mobile gives you 200 mb of free tablet data a month. turn off cellular data for everything. but keep that data plan for find my iPhone
heres a suggestion. the cheapest PAID data plan for tmobile gives you unlimited music streaming , just like if you had one of their $50 phone plans. if you already have t-mobile you can get $10 off the data plan. i think they do matching now. if u have 1 gb then u get 1 gb of iPad separately.
long rambling find my iPhone post to follow
====
if your wifi only iPad is stolen, and it is locked with a passcode. the iPad will not connect to any wifi networks unless it connected to that wifi hotspot before. furthermore, a locked wifi only iPad cannot click on "I agree" to mcdonalds or starbucks. if your iPad is lost or stolen, you can pretty much forget about ever getting it back. or if it does report to apple, it will do it eventually, and after a greater delay
a way around this is to write your passcode on your iPad before it gets stolen. but thats not a very popular idea.
this is true of iPads even with activation lock. they need some kind of basic connectivity to the internet. and unless that wifi network is in its iCloud keychain, its never going to phone home.
if you lose or your iPad gets stolen at a place without wifi at all, fat chance of ever finding it.
a thief could just take your sim card card out. but most of them might not even know you have a data plan
a cellular enabled wifi tablet will be connected to the cellular network, and it will respond to find my iPhone, and tell you where it is within 10 seconds or so. with a wifi only tablet , you have to wait for someone to find it, and bring it to a wifi network the person has no idea you ever been to, and by pure luck, it will respond to your find my iPhone feature. all while still having battery power.
wifi only tablets are great if you lose your iPad at home under the couch. and you can make it sound an alarm. but once that wifi only iPad leaves your home wifi network, find my iPhone and activation lock don't work so hot
another thing about cellular is they give you a GPS receiver.
wifi location is only meant to assist GPS. it should not be the only thing that have when your iPad gets stolen. in order for you to find a wifi only tablet it needs to do a wifi scan of the neighborhood and send a list of SSIDs to apple or skyhook wireless, or wigle. and then those companies can only send back the location back to the iPad on a best guess.
iif paying $99 for applecare or 3 years of square trade for $120 is worth it. or if you upgrade to more ram for $100 without thinking about it, then i think getting the cellular version is worth the extra $129.
they are not locked , you can take it to any carrier you want, and t-mobile even gives you 200 mb of data for free. and you get your stolen iPad back a lot faster. and thanks to its GPS you know where it is for sure.
even if you are 20 miles from the nearest t-mobile tower, i would still get a cellular tablet. and the free data plan. if you are not in a t-moble area, you may need someone else's address to activate the sim card.
they check addresses. and they won't activate the plan unless you are in their territory
i think with a little bit of fine tuning of this post. it would be a good candidate for a sticky. haha
another tip would be allow someone to use "find friends" on your iPad or iPhone. if your iPhone or iPad gets lost, you can call a friend to help you find it. and you don't have to give them your iCloud password