I've got the opportunity to order for free one of the above units.
It is still being manufactured by Garmin (link)
and the price is right so why not? It will give you a chance to experiment and also get some 'hands on' with the 76 series form factor. Note that it's computer interface cable requires a serial connection and your PC may not have a serial port.
... will use this for hunting and logging waypoints on streams for fishing .... This will not get used on a frequent basis.
It will work fine for waypoints but only has a limited tracklog capability ( Track log: 2,048 points, 10 saved tracks)
I still have this model as a backup.