Do aftermarket cargo covers exist for the previous generation Fits? I don't really like the design of the Honda cargo cover, and I'm not sure if $160 is a good price for fiberglass, felt and some string.

If other companies make aftermarket cargo covers, I might want to wait until one of those gets released.

 

As far as I know, only Honda makes them for the Fit--although several people have made their own which look pretty good and cost way less.
Other manufacturers make cargo mats/trays to cover the rear floor.

 

I decided to bite the bullet and order one when I bought my fit. $190. OUCH! I like to fly fish and wanted to be able to lay my rod on it and pass it through all the way to the dashboard. This way I don't have to break down my fly rod. It works well, but I'm still waiting for the mounting hardware for the hatch. It shipped separate from the cover and is a no-show.
It's a lot of money for a tray, but I was able to "negotiate" it into the purchase of the fit. My girls are also using it to stash things they bring with them in the car, leaving them more room in the back seats.

 

Yep, I sucked it up and bought one a few days ago. It fits nicely (as it should for that price!) - covers the floor of the cargo area, the backs of the back seats (and you can still folder down the split seats separately at will), and the sides of the cargo area (from the cargo door jam all the way up to the rear doors on both sides). It also comes with a nice tongue that you can flip out to protect the rear bumper from scuffing while you load stuff.