I did some research and compared low to mid prices scopes. For a 22, am going with a Nikon Monarch 4-16x42 SF Milldot, it is a short, compact scope. Have looked through one and the optics are good, especially for a scope costing $500.
For that 4-16x50 SF, price new is $530 from Prophet River, but I don't think that is the "X" model.
EDIT: Found out the X model is double the price of the regular Monarch series. It has a 30mm tube, a better comparison with be the Monarch Gold series. The Monarch X 4-16 Mildot new would be $1200-1400 in Canada, but they were much, much cheaper a couple years ago.