Have only gone in summer for stars.
Spring is gonna be chilly, but if you got the gear.....
You can do a week there if you are hiking and camping, car camping though might be a little boring for a week but it depends on your outlook.
By the way, intersection of 375 and 318 NV has a warm spring that reminds me (somewhat) of the spring in Florida with mermaid shows, and down from that on 93 are some great hotsprings.
PS
One of our favorite lunch spots...looking SW:
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Looking NE:
View attachment 140967
Edit:
1 Isn't Tree of Life in Washington, not Oregon?
2 Racetrack over Amboy. Beside, on the way to Racetrack, you can stop at Ubehebe Crater for similar 'Amboy Crater' type hike/experience. For greatness of the sublime type, on the way to the Racetrack stop of 1X and follow ephemeral trail to the Wall at 2X. Go on Google Earth and look for the trail. 3X is some sort of "ghost settlement" below some exploratory mines...no stealing stuff, but the debris field is kinda nifty to go through. 4X is near the lead mine and Lippencott Rd. I wonder how passible the road is.
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3 Stars are better at
Racetrack too, but Thanksgiving is going to be cold at night (maybe windy and then it will be miserable).
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It is more like
Kuiper Belt objects than the inner planets...at least that is what I have read.