Bob, where you findin' the NutriMatic for that price...?

. I've only seen 'em for I think about $ 70.00. That's a good unit IMO !
I also use the ProFeed,(Hagen), on several of my lease units. It's been reliable but it's not digitally programmable. It can dispense two feedings/day but you have to "be present at that time" to program.

About $ 50.00 through
www.petandponds.com
The Penn-Plaxx is a cheapo but it's not programmable. It rotates like a clock and dumps twice a day on twelve hour intervals...that's great if ya' feed at noon and again at midnight.

Less than $ 20.00 at Wal-Mart.
The feeding ring is a great "accompanienment" as mentioned !
A "fish sitter" is my favorite as well. I use them little ketchup cups from Burger King and that allows me to control how much the fish are fed while I lie on the beach, drinkin' Corona, hopin' I turned off the water valves...
* Consider a length of eggcrate to support the feeder while you're away...