I'll play. I have the absolutely cheapest cellphone I could find. I hate to talk on the phone, but sometimes it's really helpful for my job.
Example: a dog I was looking after appeared to be bloating when I was there. The dog lived outside, I had no access to the house and the phone inside. If I hadn't had my cellphone to contact the owner, the regular vet, and the emergency vet, very bad things could have happened. But thanks to cellphone technology, the dog got treated, and lived.
I used to be able to take pictures and upload them, but for some reason the website I have to load them to seems to have stopped accepting them. And customer service hasn't helped. So I'm learning to live w/o that feature.