One more thing to keep in mind is that even though you can't import new trips using the Good Sam tripmaker you can preserve your existing data, address book, existing trips, etc by doing a final backup of your old GPS, register the new GPS, and then do a restore of the old data to the new GPS unit. This works fine as that's what I did to preserve my old data.
UPDATE 12/5/17 I not sure what prompted Rand to add the Good Sam Import icon back on the dock software but I just did an update, the usual construction info, and the Good Sam Import icon is back. Thanks Rand!