How important is a fish finder?

[jonrhett]

I'm new to the forum, but I'll do my best to start off on the right foot, and create a descent thread.

I've never used a fish finder before, but I am really interested in buying one soon. I do a lot of fishing both from land, and off of my speed boat.

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Here in West Virginia, it is already really cold, so I've already winterized the boat, but here are a few pictures of this weekend's catches.

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I'd really appreciate some comments from you guys on how important a fish finder truly is.

I've been fishing Cheat Lake for a while, and I've learned a lot of good fishing spots. However, it has taken a long time to do so. As I travel to other lakes and rivers, I think a fish finder would be helpful to avoid fishing spots where there are no fish and or low turn outs.

Thanks in advance guys, I'm really looking forward to your responses! [fishin]
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