Infinity 102 and Inspire 100 have the same amount of aperture. The differences between these models are Inspire 100AZ’s 60mm longer optical tube and Infinity 102’s sturdier focuser.
At the moment, Inspire 100AZ costs 50$ more, which may change in the future. In my opinion, such a price difference is not worth the extra accessories and the slightly longer optical tube. Adding to that the Infinity 102 comes with a better focuser, so it would easily be my choice. The extra 50$ can be used for a Plössl eyepiece, which is a major improvement with any telescope.
But ultimately, these telescopes are worth around the same value. So don’t worry about small differences. The price is the most important determiner.