I know on average houses are usually more expensive than condos right?

I'm looking to in the future sometime buy a condo so I Can have my own place. What is the main difference in between buying a condo and a house? Or is there none?

And is it true that condos also appreciate in value? I know houses always go up...Meaning if I buy a condo for say $150-200k, it will guarantee go up in value so I can make some $ when I sell it?

How much of a down payment do you need to have for a $200k condo? Any idea on monthly payments? Or is that all related directly to my credit? Thanks.