posted 06-18-2012 09:14 PM ET (US)
Jorge writes:"... [I] spent a lot of money in all extras like GPS antenna, bracket, FF525 fish finder..."
I would not consider a GPS receiver to be an "extra" component of a chart plotter. Most chart plotters require some method of finding their position, and that is almost alway provided by a GPS receiver. I don't find that to be an "extra" item. If you bought an external antenna or an external GPS receiver, I would assume you must have decided they were necessary. I don't see this as a fault of the manufacturer.
I would not consider a bracket an extra item. Most chart plotters need some means of mounting or attaching. A bracket is usually provided. For flush mounting it may be necessary to buy a flush mounting kit. I don't find that notion that a flush mounting kit is not bundled in the base price to be objectionable.
If you wanted a chart plotter and SONAR combination instrument, there are many choices. Some chart plotter devices are set up to be used as multi-function displays and require a separate black-box SONAR. Almost all chart plotter makers who offer a combined plotter and SONAR also offer just a chart plotter. When you decide what device to buy, you should not condemn the manufacturer for selling a unit that needed a black box SONAR; you probably made that choice yourself. There are many options.