@dvgmacdonald @bun not sure i count, and not sure i know, but i've used convenient sectoral series on FRED, derived from the same BLS data you point to. you can look up CPI for rent of primary residence, shelter (more broadly i guess?), new vehicles, food at home, food away from home, gasoline, medical care, electricity, apparel, airline fares, probably more.

FRED is convenient, a delight to use: https://fred.stlouisfed.org/

@dvgmacdonald @bun PPI, one step remove from consumer prices, what producers pay for their inputs, offers series disaggregrated by industry.

@dvgmacdonald @bun pricestats, which is a commercialization of MIT's Billion Prices Project, is an independent collector of pricing data, which can serve as a check on government series. They too offer sectoral disaggregations, Apparel, Food & Beverages, Furnishing & Household Equipment, Health & Beauty, Energy & Transportation, and Recreation & Electronics. But I suspect access is expensive. https://www.pricestats.com/inflation-series

@dvgmacdonald @bun I don't know how fine grained BLS data would let you go, if you really want to trace the price evolution of a single, reasonably constant, product.