For large printouts, I'm not too overly concern with how sharp the picture is
Like an advertisement poster that I usually print (e.g.10ft by 3 ft), nobody will stand at a distance of 30cm away to see. You'll need to stand at a distance in order to see the whole poster. Therefore, as long as it is able to convey the message I want, I have achieved my purpose.
Even for those MEGA big poster hung from a building, you think they have a 100MP camera to take the photo? Its usually taken with a 10MP camera and blown to proportion. You viewing distance is easily 500m to 1km away.