Hey just an FYI Navionics is offering up to $75 in rebates when you buy a new Navionics or Garmin card and trade in an old one. This is a great deal if you have an outdated chart or you can participate to the program even if you own a card from C-MAP, Fishing Hot Spots, LakeMaster, Lowrance Insight, Magellan or TrakMaps..
https://www.navionics.com/usa/lp/rebate