Which would you buy - Galaxy Explorer OR Blacktron Renegade?

I'm looking to get one new classic Space set. I am a big Rebrickable fan and having a lot of alt builds is a big plus. I am seeing the GE for around $125 and the BR for $72.

Considering all this, which set would YOU say has the most play value, the most rebuildable value, and overall is the most worth picking up?

https://preview.redd.it/ujh3o0zi4nsg1.png?width=1000&format=png&auto=webp&s=8b1b566d187f7d34454072776701130b9323ae87

https://preview.redd.it/47m5m8yi4nsg1.jpg?width=1000&format=pjpg&auto=webp&s=f48bf8bcf9d89f60e56f3b4a19f28b30ca0f6db9