Most of my puzzles are 1,000 pieces and the most common brand that I have is Ravensburger.  That does not mean the majority of my puzzles are that brand, just that of any brand I have it is Ravensburger that makes up the most percentage of my puzzles.  I have a few puzzles that are 2,000+ pieces and rarely play with those because I do not have a tabletop big enough to layout more than 1,000 pieces at any one time.  I have 100+ puzzles and generally play with them numerous times... open puzzle box, dump pieces on tabletop, flip pieces upright, put them together until puzzle build is complete, then take it apart and box it back up until I want to play with it again.