Takahashi rewards budget travelers who plan around JR rail passes and weekday timing. Most anchors—Bitchu Matsuyama Castle's mountaintop ruin, the Buke Yashiki samurai district, Raikyuji Temple's dry garden, and the Fukiya Furusato heritage valley—are either free or carry a token admission, so daily costs come down to lodging tier, food choices, and how you reach the trailheads.
The common money leaks are last-minute taxi rides up to the castle when the morning bus is missed, premium castle-view ryokan dinners added on top of room rates, and souvenir impulse buys in Fukiya. Avoid those by arriving on a JR Hakubi Line pass window, eating Bitchu soba at lunch, and walking the stone-wall path instead of hiring a car.