It really depends on the situation. To repair is cheeper than rebuild. I find it hard to believe your Hatteras 12 point Systems Monitor Board was completely rebuilt for 200 bucks. Parts alone cost way more than that.
Those guys you are suggesting to everyone at Flight Systems probably didn't have a clue that you have to change the resistor values when you change the chips from the old AMF chips to something Current. Hatteras used to be owned by AMF. AMF used to have their hand in alot of things, VOIT swim masks, Bowling Balls, Harley Davidson, etc. Even IC CHIPS! They don't make those chips any more and there is no direct crossover with those original specifications. When you change to the new chips you have to change the values of other components as well. So the board you had looked at, may not be all cracked up to be what you had hoped for in the long run. I guess there might be alot of places that would attempt in repairing those boards. I wouldnt suggest people having a Volkswagon mechanic work on your Rolls Royce....... or have someone be learning as they go, on your nickel.
I rebuild these Boards on a daily basis. I worked for Hatteras for years. I am very familiar with the application. I find that even without using these boat alot, the Chips start to go bad after about 12 years on average. Usually when one goes bad, it is just a matter of time before they all start going, since they all basically do the same thing. It is just kind of a maintainance thing. When you get your board back from me you should'nt have any problems for another 12 years of normal use. I try and make these rebuilt boards better than the original. Which is pretty hard because these boards were really well designed and thought out
I see alot of times people get an alarm and they silence it and forget about sometimes so long that the lamp burns out in the remote panel. Half the circuit is energized as long as you see that red light, when you silence it, then you energize the other half as well. The sooner you can remedy the fault the longer those chips are going to last. It appears to me that these boards are more of a sensitivity type designed circuits not really a long term current carrying one. There is alot you can do to help preserve or prolong the life for example, using the AC bypass when your hanging in the slings unable to use the Generator or Shore power.
It wouldn't be appropriate to quote prices here on a forum. Call me