What is the tensile strength of the chain in the package? When I got a new chain for the FT500, I bought an off-the-shelf non o-ring chain from the local dealer for less than $40, IIRC.
I wasn't concerned with the low tensile strength, as the bike didn't make that much horsepower, and I wasn't planning on putting a lot of miles on it.
When I went looking for a new chain for my 750, I was a bit more picky, and opted for a non o-ring chain of greater strength, which cost about twice as much as the one I used on the FT. I also found that for a given strength chain, an o-ring version cost about twice as much as non o-ring.
O-ring chains can last longer than non o-ring, but they still need to be lubed on a regular basis.