You’re not alone. I have
iPad mini 4 (to be disposed soon)
iPad mini 5 LTE (car GPS fixture)
iPad mini 5 LTE (portable iPad)
iPad Pro 9.7”
iPad Pro 11”
iPad Pro 12.9”
And like I tell my bewildered friends, "a dedicated iPad for each bathroom of the house!"
I really wanted to use the Mini 2 and another iOS device as a video intercom between the house and detached workshop, but couldn't find a reliable, instant-on solution, as my devices would eventually crash even if left plugged in to a 12W adapter...
Since the LTE iPads have GPS radios... do they connect to the satellites and allow you to use Maps to navigate WITHOUT a full-time data plan? I presumed yes for my retired iPhones, but they insisted I connect to a cell or WiFi network in order to navigate via GPS. Anyway, moot point for me since I found a good deal on a Pioneer CarPlay receiver for the 4Runner...