I got a teeny tiny dot220 by ReSound. Very, very helpful. I have mild to moderate hearing loss in all frequencies, and severe hearing loss at high frequencies. At first, I said "There's no way I can adjust to this." I think it can take about 3 months for your brain to really adjust to the aid and use the input maximally.
My hearing aid cost about $2200, and Blue Cross paid $1000. In many states, insurance companies must now pay a $1000 minimum for hearing aids, by law.
I got the rest from my Health Care Savings Account. Therefore, I paid about $800 after the savings account tax benefit. I get a 2 year warranty, and got about 15 months worth of free batteries.
I have a very difficult time getting by without it, in some situations, and am very thankful for the technology. The audiologist explained that high frequency hearing loss has a big impact on your ability to discriminate speech, because you "lose" ending sounds of words like s, t, ch, etc.