I had the same for the longest time after Voyager. It's why I never followed Deep Space 9. I just didn't have access to it.. Since over more than a year ago I got Netflix I indulged in all series again (what a luxury to have it all so readily available!), but suprisingly had the least fun with DS9. The only Star trek series I never watched before
When I rewatched TNG i afterwards thought there was actually not that much info given about the Borg. Or certain other classic and much referenced to alien civilisations, like Cardassians or even the Klingons and Vulcans. I remembered differently. But all those snippets of info and references during that series painted a picture that gave you a really good idea. But this got really filled in by all the details given in Voyager (esp. about the Borg)
Deep Space 9 wasn't my favourite. TNG and Voyager are the one's I've rewatched in recent years. I used to like the original but now it looks very dated.
DS9 sucked balls. Way too many boring episodes about religion, Bajorans and space station waste management