Prefer wheat ones myself. Usually go for the ones laced with chillies or herbs.
It is the main form of bread that I eat -- might occasionally have some UK cornbread or regular bread if I have a burger or something (though even there I will often slice it up and put it in a wrap).
Don't think I have seen the uncooked ones in the UK ever, and if they are then they are the ridiculously expensive ones in the taco mix section rather in the bread section.
Went to the US and found they were absolutely loaded with salt, to the point where you could actively taste the salt, and then got introduced to the ones you get to warm up yourself.
As as cooking them in general... not unless I am making something with them -- quite like the poor man's tortilla/pizza where you fry one in a pan with some cheese and peppers or something between another, but more often it will be I make a bunch of wraps of meat or something to put in a tray before covering with a meaty soup based cheese sauce. I do occasionally do a vegetarian version (surprising as it may be I do actually get along with some vegetarians) but that much sauce and refried beans ensure I will tinge the air a different colour with all the farting.