Think about the case you had
(1) A completely environmentally-resistant suit (so you can stand on the surface of basically any planet)
(2) A teleporter to take you absolutely anywhere instantly
Still in this case, you'd probably spend a while visiting new planets, but eventually it would be kind of an exercise in geology. There would surely be some amazing sights like huge canyons and whatnot. But I can't help but think it would be eventually boring without human culture (or all sorts of life) surrounding it.
I think literally exploring art and culture (including games, sports and intellectual pursuits, science, etc.) is much more interesting than exploring the universe, it's a shame this isn't as culturally recognized (so we didn't have to be so obsessed with having more and more stuff to go somewhere that isn't just right here on Earth).
Even if you brought human life and culture there, which is surely nice and perhaps noble (depending on how you do it of course), that simply creates a new place that's analogous to Earth itself.
Kind of a hint of an insatiable cosmos-devouring demon that must conquer everywhere but can never enjoy the comfort of his own home. (not accusing you in particular of this, just painting a poetic picture :P)
I'm really excited about conquering hunger, poverty and curing severe mental illness, as a counterpoint.