Welcome to CN, Mike! Your story is a familiar one, insofar as having the hobby wax and wane over the course of our lives. I was super serious about it back in the late 80's, let it go for a while, and then just got semi-serious about it again last year. I managed to pick up the ETX-125PE when they had a huge sale on them last year (and am I glad I did...the prices have gone up considerably since then!)

The 125 is awesome, and I've gotten some jaw-dropping views of planets with it. Jupiter is just amazing, and you can on a good night not only discern the major banding but can clearly identify the belts, bands, and zones along with clearly defined festoons and whorls in the various strata! All this at modest magnification too (around 175x or so as memory serves.)

Nevertheless, don't discount what your 90 is able to see just yet! I've been bowled over at some of the high-quality photos I've seen through the 90! For a small scope, it's pretty big on performance!

Best of luck to you as you rediscover your hobby. Clear skies!