Free: Contests & Raffles.
I would avoid lowrance as they often have issues and costumer crevice sucks. Get a Garmin. The quick draw feature is worth it alone. And the units are solid.
I've owned Lowrance units for 25 years and have had zero problems and haven't needed customer service. Lowrance developed and patented the technology which is now under license to Garmin after a big lawsuit and cease and desist that Garmin violated and was spanked pretty bad in the courts. Garmin paid up and is now using technology they licensed and are heavily marketing, but it is the same technology that was developed by Lowrance and has always been available on their units. You can get the same options on either brand, the marketing and tradenames are different. That said, from what I have seen on other boats, there are plenty of good options out there today. I likely wouldn't have much resistance to try any of the leading brands.I would probably take a hard look at Simrad units if I was wanting to upgrade, but for the fishing I do the Elite 9 I have does more than I need.At that price range you can get a solid unit that should serve you well for many years.