Should I take the plunge on a GS Spring Drive or wait?

Hey everyone, I've been lurking for a while and finally ready to pull the trigger on a higher-end piece. I'm torn between a SBGA211 and SBGA375 Spring Drive. Both have that insane Zaratsu polishing that makes me lose sleep at night, but the price difference is killing me. I know the 375 has the newer caliber and better finishing, but is it worth the extra cash? Also, should I be worried about Spring Drive servicing, or is it overblown? Looking for honest takes from anyone who's actually owned one of these beauties.

Spring Drive is amazing - so much fun to look at the clean sweep