Popcorn ceilings have been around for a long time and aside from the fact that cob webs and dust cling to it, they also date the home. The best renovations occur when you have a home that is 30-40 years old that can stand up to and surpass new construction.
Whether you're planning on selling your home or not, it is really unimportant. Your home is still your investment and unless you can see well into your future financial needs with your crystal ball, you should always invest in updates that make sense for your home's value.
Ceilings often get overlooked in renovations by do it yourself types. Why? Well its the un-fun part of the cosmetic aspect. However, if you don't address it, it will actually take away from all the hard work you put elsewhere.
If you're doing a full from top to bottom renovation, you'll want to tackle your popcorn ceiling first. It's messy..and no matter what you read or research, there is no exceptionally "easy" pain free way to tackle it. If you're lucky and it has not been painted over, it should come off a little easier, but it will be very messy and if your home is an older home you will want to have windows opened, everything removed from the room possible, and what stays must be covered, and covered well. The dust and debris get everywhere, even in places you haven't thought of. Keep a dust mask on and protective eye wear. If you forego the dust mask..and I don't recommend it, keep your mouth closed. You'd be surprised how many of us have our mouths open when we are looking up and scraping..its weird but true.
Now there are some work around ideas you may want to do if you absolutely want to avoid scraping a popcorn ceiling. Research these:
Ceiling Tins- expensive if your kitchen is large, but they do come in a variety of textures, and colors. You can also find them in pvc form.
Styrofoam ceiling tiles- These are far less expensive than the aforementioned and can give you a very nice look. I would suggest researching online images of projects done by others to see if it is something you can do.
Panels- You can use bead board paneling and tongue and groove wood on your ceilings. It is very expensive to go this route as well depending on the size of your kitchen.
All of these ideas will likely still require some sanding of the popcorn, especially if it is very textured. I would try an inconspicuous place in a closet or hallway ceiling to test out which idea works.