I already have a 2nd edition boxed set and the other editions don't particularly interest me, so I'll just look at the supplementary material. As I mentioned in my last post, I have 3 reference works available. [EDIT TO ADD: I have no idea why there is so much blank space between this text and the start of my table. I guess that's what I get for trying to get MS Word to help me make a table.]
"Mini-module included--Shootout in Northfield and Other Famous Gunfights"
Notes that it is designed for 2nd edition rules
BH1: Mad Mesa
"Solo or multi-player adventure"
"Solo scenario set in an exceedingly trigger-happy town, with rules for running it as a game-mastered group adventure."
BH2: Lost Conquistador Mine
"not only the best of the Boot Hill supplements, it's also the best Western adventure ever published"
"originally used for the Boot Hill tournament at Gen Con XIII. A treasure map leads the players to a lost gold mine - if they can get past bushwhackers, con men, bank robbers, Apaches, and aristocratic European hunters."
BH3: Ballots & Bullets
"7 miniscenarios, involving an election conducted with lead-slinging enthusiasm by thevoters of Promise City. Includes over 300 NPCs and instructions on how to conduct a crooked election: dirty tricks, stuffing ballot boxes, disrupting rallies, etc."
BH4: Burned Bush Wells
"a classic Western scenario set in the dead of Winter"
"Campaign setting that describes the town of Burned Bush Wells, the setting of a number of miniscenarios. It's the dead, and the town is divided between 2 rival factions."
BH5: Range War!
"a guide to the town of Promise Cityduring a cattlemen/sheepherder range war, with a town key, PC and NPC lists, and a number of miniscenarios."
Mad Mesa looks dubious, but between Swan and Schick they manage to sell me the rest of the product line. Range War is apparently rare enough to drive up the prices on the eBay, so I doubt I'll be getting that one unless I can find it at bargain price.
The three guides also note that Fantasy Games Unlimited made a competitor product called Wild West, with a single adventure module Trouble on Widow's Peak. Both look interesting enough to warrant a purchase at cheapy-cheap prices.
Given the fact that I'm going to get such a big chunk of the product line, I think I will bid these game systems consecutively rather than in parallel. I.e. once I'm done with Boot Hill, then I will move on to Gamma World.