Scaling TfB's besides the remodel family can actually work, provided you can use them before you begin reducing cost. For instance, top decking Border Village/Apprentice can work extremely well at giving a 9 card starting hand. With more difficulty you can do things like buy a province now, salvage it and buy out 4 provinces at 2 coin each. Yeah, these things are iffy and unreliable most of the time, but sometimes you lose the Hwy split and have to gamble on something like that to make up it for earlier bad luck.
One place where this can actually be really strong is with Colony games. If you both went Hwy, you will rarely get Colonies down below 3 coin, so doing a 5 colony megaturn needs to come up with a minimum of 15 coin, and often more if you need to pad your lead out with provinces. Buying a colony or gaining a Plat in order to trash it with Apprentice or Salvager before playing cost reduction can give you enough oomph to either draw a huge pile of coin or sell high and buy low as it were. Likewise, quarry can sometimes make buy low/sell high viable for Hwy decks.
Yeah, all of this is niche stuff, but take a moment and don't just write it off. Maybe 5-10% of the time when you have Apprentice/Salvager/Bishop out with a nice Hwy combo you can use buy low/sell high tactics to your benefit; often the biggest reason not to do so is just opportunity cost.
