That solely depends on how much you like that unit. If you really like it and are willing to have it repaired, then go for it. If you would like a newer unit with additional features, then buy a newer unit. As for the power and transducer working. That really all depends on what new unit you buy and if the new unit is transmitting on the same frequencies... Seems the Depth Finders/Fish locators have taken on a whole new life these days. And with each new capability, the old stuff becomes obsolete quickly. Therefore making the consumer buy new things with each update. Marketing, you got to love how they treat consumers these days... :facepalm: