No, algo de razón tiene.

Qué coño, la tiene toda! No aseveréis tan fácilmente que da igual algo si no lo sabéis!!!

Si lo desplazas del centro, como casi siempre, se ha de corregir con el trapezoidal (keystone). La inmensa mayoría lo hacen en digital, no como lo haría un proyector profesional con espejos y lentes, así que se desperdician parte de los píxeles disponibles. De eso se encarga el escalador del proyector.

Por cierto, casi todos tienen el keystone vertical, pero muy pocos el horizontal, así que al menos el proyector en el centro.

Cito: www.kingprojectors.com

"Although keystone correction is a great feature for those tough situations, it is still a better choice to make sure your home theater or presentation projector is perpendicular to the projection area to obtain ideal picture quality. Because keystone correction occurs within the projector internally, some image quality is compensated to scale the image so that it is square. Depending on the degree of the keystoning, this loss of quality may vary between subtle and severe at larger angles. This may not be as noticeable with business presentations that rely on PowerPoint and similar applications; it will be noticeable in home theater situations where image and video quality are extremely important. For these situations, it is recommended to look for a screen projector that incorporates lens shift which achieves similar results without the loss of image quality."