I think you should just use paddles or pedals... If your gonna put a motor on your Yak you might as well have a boat! Just my opinion.
I hear this argument a lot. Here is a different perspective to consider. Don't feel like you have to agree but at least think about it.
I can't throw most boats in the back of my truck by myself. A boat takes gasoline, insurance, storage fees etc. There is a large gaping cavern between a kayak with an electric motor to add range to your day and an actual gas powered boat. There is also the availability to fish in the kayak without the motor which makes it very versatile for lots of platforms and can allow people who fish multiple water types to not need multiple kayaks. Tournaments are a whole different ball game and one to be considered by the tournament directors. Luckily I am not a TD so not something I have to decide.
Just one other side note, I currently don't own a motor but am looking at getting one for my saltwater kayak, a Thresher 155. Sure would make getting out to the rigs a lot quicker and easier. And if I run out of battery, I can always paddle back in. My Ride 135 is my everything else kayak and is still under paddle power.