I hope this is not sacrilegious to ask this question here in the Questar forum, but always wondered? When Meade tried to copy the Questar 90mm in the late 90's at an affordable price, I bought one. I always dreamed of having a Questar when I got my first look at and through this amazing little scope. Our astronomy professor had one and would let us look through his at star outings. We actually had an outing the night of the famous meteor storm in November 1966. We knew it was going to be good and it was, but had no idea it would become a "storm" late on in the AM. We probably quit around 11pm as it was a school night:)
Anyway, there was no Cloudy Nights back in 1996 to report on scope tests back then. I'm sure S&T made some first looks at the Meade ETX-90 when it first came out, but I wonder if anyone out there actually did a side by side comparison of the optical performance at the eyepiece. The Questar is a beautiful instrument just to look at with it's craftsmanship vs the metal and plastic make up of the ETX. BTY, a little tidbit on the ETX name. It was originally named the ET for "everyone's telescope" but the movie ET had the trademark and was not able to use it, so an X was added to it. So I would think that taking a quick look through both scopes, say of the moon and a few open clusters the view at say at 75x would look pretty close, but what about on something a little more demanding like Jupiter and Saturn a100x?
I would even consider a test of the Q vs the larger ETX-125 and they are still a LOT cheaper than the Q 90mm?