Do you think the images described in the story make time travel appealing? Why or why not?

Because this question asks what a person thinks, it is an opinion based question; therefore, it's up to you how you want to answer it.  
Personally, yes, I think the images described make time travel appealing.  It's time travel, and that is reason enough for me to want to do it.  Secondly, the group gets to go back to when dinosaurs roamed Earth.  That would be great.  It would be scary for sure, but I would finally get to see once and for all if the creators of the Jurassic Park movies got anything correct.  
For a specific image from the story, I like the following:

The jungle was high and the jungle was broad and the jungle was the entire world forever and  forever. Sounds like music and sounds like flying tents filled the sky, and those were pterodactyls  soaring with cavernous gray wings, gigantic bats of delirium and night fever.

I teach an environmental science class, and we discuss things like habitat loss, forest destruction, and pollution.  Being able to go back in time and see an entire jungle in a state that is completely untouched by man would be great.  That's why I like to go hiking and backpacking.  It's great to get out to places where I can't hear horns honking, traffic noise, and the general city cacophony.  Being able to go back to a place and time as presented in "A Sound of Thunder" would be a once in a lifetime experience, and the story definitely makes it appealing to me.