I love text messaging on my iPhone. Having to type every word letter by tedious letter makes me cut to the essentials only. No fluff or filler words, it's all about economy.
"You wannt to eaf ouf toniife?" does not require a financial review. "Runnimg late" needs no long explanation. "Can I burrow somme money?" is easier to ask when you text it. There's no arguing with the kids over curfew when you can just text, "Gert home now!!", then ignore their response when they start pushing back. LOL!
If you're not using text messaging you're either too old or too lazy to learn. :) Possibly both. (hehe!) The real truth is, if you're not texting you might be saying way too much.