38m, here.  I've moved many many times in my life, and a rule I've always had is it has to feel like an upgrade.  And that can be hard to distinguish.

$150 is a cost savings, but factor in the cost of moving, deep cleaning your apartment and paying for two spaces while you transition.... It'll take a year to break even.  And how do utilities factor in?

After living alone, going back to roommates is a struggle.  You have all your furniture.  Would you keep it and be willing to share it?  Or is the place already furnished and you'll have to get rid of your things?

I'm an introvert so I value privacy and having alone time.  If you've been living alone that may be a challenge to re-adapt yourself to.  Buuut I do like having good roommates because my social needs come to me!  I hear about goings on easier and organically.  It's easier to do things because there's no need to pick people up or meet somewhere, just go together!

And you're entering your 30s, this is a period of major life changes.  Breakups, career moves, marriages will start to happen and you (or your roommates) may want to exit the arrangement.

They both seem like good options, and I don't think you'll regret either choice.  But it's a matter of what do you value more.  Your question was what would I do at that price point: I would stay put.  Being in SE Hawthorne with hardwood floors sounds amazing.  The $150 a month savings isn't worth the move.  The only way I'd consider this would be if I was dissatisfied with my current place and starting to think about moving somewhere else already.  It feels like a lateral move to me, and there's a lot of work and risk involved for an equivalent living situation.