Was just at Shenandoah a few weeks ago. Luray is pretty but then so is Shenandoah. Got some very nice pictures of the ponds and Shenandoah has some unique calcium features. We just did the cave and not the other things at the site so I can't vouch for them. Also wasn't anywhere near as crowded. We were originally going to stop at Luray, but the line just to buy tickets was out the building and down the sidewalk.

I've been to Luray but not Shenandoah. Is it worth it? There's a discount on Groupon (for adults; we'll buy kids' tickets from Shenandoah itself). We're thinking of going there and then maybe spending a day at Massanutten. What do you think?