I live in the boating capital of the world down here in S. FL.
We do not see many ETEC's. They are not a bad engine but the 300 verado with DTS, Power Internal Steering and a 7yr warranty is the way to go. If you really want some speed step up the 350 verado. Had 3 on a Fountain. They are strong.
Also I believe you will find not near as many people to support them.