Out of everything we did, this is probably the one thing we could have skipped. SoHo and Greenwich Village seem to be popular for their architecture, food spots and bars.
Our problem I think was we built a walking tour on google maps using a guidebook example, but never documented why we went a certain way, nor was our map very good.
What was helpful was the occasions when you saw the blue historic sign and had a "ahh" movement.
The architecture ranges from art deco, cast-iron and row houses.
So is it worth it on your own? Probably not, we could have seen the cast-iron architecture on our way to REI in SoHo, we didn't need to walk around in circles for it. Would we have got more value from a walking tour? Most probably yes.
And I guess that's the back up for SoHo and Greenwich Village, if you get lost there's plenty of places to shop, eat and drink!