Over many years of imaging the planets ive found the difference in detail between 9"to 12" aperture is very slight! Having imaged with a c9 c11 & meade 12" all well collimated & cooled, the c9 & c11 by far out performed the big meade on a regular basis, the c9 & c11 which performed with equal consistency! IMO & im talking planetary imaging only, more expensive telescopes claiming better optics offer no advantage what so ever at high resolution , good imaging software post processing can more than make up for any little gain so called better optics will give you! Some of the best planetary images ive seen have come from mass produced budget scopes! ( Food for thought ) 😉