I'm on a family share plan with my two cousins/roommates, but I'm confused as to how you don't already have texts included. I've got the "unlimited date/text" for smartphones, and so does my cousin with a Droid. The outcast (lol) has a BB Storm, and he's got the BB plan with unlimited data/text as well.
I agree with others that texting is quite useful. I don't like talking on the phone anyway...None of the three of us really do. Between our Friend-Family numbers, we probably never touch our minutes for the most part.
The think I like about texting is that sometimes I just want to tell someone something quick and simple. BAM text sent.
Not everyone that I know uses e-mail on a regular basis...My mom, dad, and sister who all text me and who I text back MIGHT check their e-mail once a week...in a good week.
However, I ALWAYS get a response at least on the same day when I text them.
Personal preference I guess, but my only real point is that they should've set you up with unlimited data/messaging when you got the Droid. I understood that this was either the ONLY real option, or the BEST option. Either way, we've been pleased with it.
If you NEVER text and NEVER care to receive a text, go ahead and block all of them. If you find yourself getting spam texts, you can block up to 10 numbers via VZW's website. There's also a code you can text to a specific number that will add blocked numbers to the list that you setup on the site, but I don't have it handy...
Do what works best for you! If you don't want it, you don't have to have it. Shouldn't matter what the rest of us do.