...I lately see more people who like seem to like Andre.
If you see it more lately, it's probably because younger generations and newer fans can identify and appreciate Agassi more since he played well into the 2000's.
More than that, though, he was much more charismatic and engaging than Pete was. Resultantly, sponsorships were all over him for his marketability.
Personally, I watched some tennis in the 90's with my mother, and I was drawn to Agassi way more than Sampras. The former was just a lot more exciting.