Sorry OP, but this reply is more to some of those that have posted than to you ...
My daughter and I found our first LPC last week and despite it being on the top floor of a parking building, we actually enjoyed it because of it being a clever hide (we thought - we had never encountered one before, and would not have thought of hiding one there ... didn't realise it was possible).
The cache was small, about 200ml I think, and had a variety of swaps in it and plenty of room for trackables. While I prefer interesting locations, and my children prefer "treasures", we also enjoy the search and variety: though this was something new (and therefore, exciting) to us, we wouldn't want to do hundreds of them, maybe not even dozens, unless the bulk of them were in interesting locations.