re: I understand, but...
The Ultra deep field picture (with the ACS) is my laptop's wallpaper.
What the HST has is a team of astronomers dedicated to sharing the best pictures with the public, adding colors to pictures to make them appealing and also scientifically meaningful.
If another telescope had the same kind of regular relationship with the media, it would also be able to excite the public's imagination.
But ultimately, what matters is the knowledge and how much it costs.
Also, there already are parts of the HST back on Earth, from previous missions.