Hello everyone. I am new to amateur astronomy and would like to know if there is a big difference in the view between a 90mm refractor and a 127mm or a 130mm refractor? I keep hearing that aperture is one of the key factors for telescopes. I currently own a 90mm refractor on an altazimuth mount since July 2020 and I have enjoyed it, but would like to know if a larger refractor makes a big difference or not. I am considering a second telescope (more aperture), preferably another refractor because I like the simplicity, size, and the durability. I do not have a specific model in mind, but my budget is about $800.00.
My viewing conditions are the suburbs (Bortle 6 sky) and I view planets, the moon, star clusters, double stars, M45, M42, M31 (was actually able to see M31 as a small grey-colored faint fuzzy), and any other brighter DSOs that my 90mm scope can handle. Will a 127mm or 130mm refractor show a considerable difference and more details of these objects compared to my 90mm? Also, is a 127mm Mak-Cass a good option for an overall telescope to view the same objects? I am only interested in viewing, no photography. I typically view at home in my yard or back deck. The details of my current 90mm refractor are below in my signature block.
I appreciate any advice from those with personal experience with various refractors and/or Mak-Cass telescopes. Thanks.