It doesn't seem to fluctuate nearly as bad as regular pump gas in price. Over the last 15 years of buying it at different airports, it's always been between $4 and $5.25 a gallon. Last week I paid $4.80. Not bad when 91 octane non-eth is approaching $4.
The last time I bought some in Alabama it was $4.54 a gallon, but that was over a year ago so I am sure it has gone up some. My 1968 GS400 loved it!
Sure stuff breaks.. and if the rod failure was the origin of the issue, then the bearing would look pristine, with just whatever scuffs or dents it got after the engine spontaneously disassembled itself. You have the classic bearing failure syndrome there. Seen it many times, and on an engine with open headers, it can be heard to hear a rod knock. I had something like this happen 30 years ago.. Brand new Girdled 464 build... This one had Crower Billet rods in it... back when they were about $800 bucks, and the only drop in option.. Dynoed the motor, made 7 passes in the car.. on the eighth, it broke right off the starting line... I rolled to the side, the engine was still running, and I looked down at the oil pressure gauge, it still was registering.. I shut it off.. thinking I broke the trans (again).. Imaging my surprise when Rick, the starter, walked over with half a Crower billet rod in his hand. Took out number 7 rod.. the rest of the motor was pristine.. I could have re-used them. But number 7 failed the rod, beat the snot out of the piston on the head (it was zero decked) and then broke a rod, which exited thru the side of the block. To this day, I have no idea why number 7 rod bearing failed. But it did, and was the genesis of the failure. But over the years, I have come to realize that it was most likely something that I did wrong.. JW