No airways on the AV80R, but it is really a VFR unit. When it boots there is reference made to a custom database, so it may well be possible to add them. The AV80R Ace appears to have IFR airways.
As regards map updates, I got the first database update free, and I was $35 for an additonal 6th month sub.
Software updates are free
afaik, and the last one added runway centerlines and some other goodies.