I have a 20lb one made by coca cola. You can have it for $50...I think it still has some co2 in it. I am located on the border of NY and CT -- live right next to MetroNorth which is 42 minutes from Grand Central.
My concern is that they probably wouldn't swap it for me because it is a coca cola tank? I can't do refills on the spot here.
I actually had two of the Coca Cola tanks and recently went to get one swapped out at AirGas down the block from me....they took it without issue and gave me a new filled 20lb tank. The sticker on this tank is actually from SOS Gas in NJ so it looks like the bottle has been going around as normal.
Not sure how big of a tank you want but a 20lb is pretty big so double check on the size. It lasts for a very long time but takes up a decent amount of room. It's also cheaper to fill up a bigger tank in the long run.