Joe b. said: "So a person has to decided over and over again on a trip to/from Alaska, is the purpose to see how cheap you can do the trip or how much pleasure you can get from the trip. We all have to compromise at times. I have mentioned there have been times I have been so broke on the trips I had to stop and find work to pay for fuel and food for the remainder of the journey"
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There is probably no more spot-on advice than that above. I've had a couple trips that became sleeping-in-the-car trips when my available funds went to car repair vs. motels. I've had more than one trip (by myself) when it was 72 hours or less back and forth and those trips were surprisingly cheap...but that was done to get there, not to have an enjoyable trip.
As a newly graduated law grad many years ago, DW and I took 10 days to drive from Spokane to Los Anchorage...it was a challenge to spend 10 nights of motel costs, eating at greasy spoons, etc, but it was and is one of the more enjoyable trips I've taken and while 10 days isn't unduly fast, it was a good mix of what can I afford vs. dawdling and enjoying all of the sites.
In eventual retirement, I'm looking forward to (maybe) taking a month to go from Ewe-stun to Seattle and another month from Seattle- Los Anchorage....then maybe take the ferry back down the following year. :)