Some points on AMHS etc:
- RV rental is very expensive in AK; as are hotel / motel in the summer. If one was planning on driving an RV up in any case, the recent fuel price increases probably aren't as much as flight + hotel + eating out +++.
- AMHS is one of my favorite ways to travel, but the ferries have cafeterias. One (IIRC) has a dining room in addition to the cafeteria and snack bar and coffee bar. They aren't cruise ships by any stretch. ....and "stateroom" is a stretch, although the accommodations are nice enough.
- AMHS has recently implemented dynamic pricing...wherein there is a premium (up to 40%) added to fares and other charges depending on occupancy....I believe the uptick starts at 50% occupancy(???)
I think folks will enjoy coming to Alaska however they get here, but if driving was planned, the incremental price increase recently may not be a suitable reason (standing by itself) to change access methods.