Just picked up a Meade 70mm F10 model 70 AZ AR from Ebay. This is the somewhat older silver tube version of the Meade 70mm F10 'Infinity ' model being sold today. This is my second one and I'm glad I found it as I should have never given up the first one. At F10 with a tube length of only 29.5" it exceeds the Sidgwick standard and exhibits virtually no CA. It has a nice 5" long dew shield and comes with, 90 degree 1.25" diagonal, 2 1.25" Meade MA eyepieces (25 and 9mm) and red dot finder. Total cost with free shipping $45.
Of course it is Alt-AZ mounted so right out of the box the mount was discarded and the associated tube attachments were removed. The collimation was a bit off but after removing the one screw that held the cell in place I was able to adjust the collimation and super glue it in place. I now have it mounted up with rings to a beefed up EQ mount with an RA drive. First tlight I viewed Saturn at 140X with a better diagonal and a quality Plossl. and got a perfect sharp image.
Bottom line' Why would any one spend a fortune on a 70mm APO????