there are a lot of episodes that wouldn't have worked so good with a crew of 1,000 instead of 150. i liked the voayager design a lot better than the loveboat e-d. which was so much stronger than the difference in size suggests. i believe the replicators can explain the fresh uniforms, the supply with torpedoes, and much more. the holodecks and other indulgences don't necessarily waste energy, possibly almost any matter and energy used on the ship was recoverable.