I used my '96 in salt. The boat held up just fine, but I was nuts about flushing and cleaning it. I was so nuts that it was not even worth it any longer and I stopped dumping it in the salt.
My buddy and I went in halves on a cheap outboard for the salt. We used it for about 4 years without an issue and then sold it for $1500... initial investment was $3500. I should have done that in the first place, as it was cheaper than the fresh water cooling system we had installed on it and the trailer refurb I did after I stopped dunking it in the salt bath.