I bought a digital piano. I live in an apartment. Being able to play with headphones means I can play 24 hours a day without bothering the neighbors.
I have not read the instruction booklet. There are many things that I could do with it eventually, but for now I'm just going to play it.
People ask the difference between a digital piano and a keyboard. A digital piano looks and feels like an acoustic piano (that's what they call regular pianos now -- acoustic). The case is wood and you wouldn't know it's digital from looking at it. It has some features like a UPS connection to hook up to your computer, etc. It has much fewer "bells and whistles" than a keyboard. A keyboard usually allows you to make it sound like a wide range of instruments besides just a piano sound. Lots of other stuff also. A keyboard looks like what it says -- a keyboard -- that sits on top of a stand. Keyboards can be carried around and set up wherever you want them. A digital piano, while weighting significantly less than a regular piano, still needs two people to carry it and set it up. A regular upright weighs about 500 lb. A digital piano weights around 100 lb.
So, that's the information I gleaned when researching whether to get a digital piano or a keyboard. (oh,yeah, and keyboards cost much less than a digital piano).
Next step. Playing it. I had lessons for a year when I was 8 and a year when I was 12. Then a couple of 6 month stints with 2 different teachers over a 20 year period. Then I started playing seriously and starting to compose. "Life" intervened and I haven't had a piano or played at all for 15 years.
Starting over. I still have the books I learned from so I'm starting right from when I was 8 and I plan on working my way through to see what I learned and more importantly, how I learned. I'll say more about why the "how I learned" is important.
My goal for now is to do something piano related, 20 minutes per day, 5 days per week. It doesn't have to be playing. Today I read through one of my sheet music books to get an overview of what pieces I might like to learn.
I'm starting all of this after a year of major depression so it's going to be a slow process, but having a piano in my living room is the first big step.