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Big money strategies tend to be stable, in that the goal is to buy money, money, more money, and then provinces. It's pretty hard to mess up
Engines on the other hand, rely on drawing most or all of the deck in one turn. This means maintaining a thin deck and buying a lot of villages and draw before adding payload
On this board you can pick up a bunch of Band of Misfits, Villages, and Smithies to gradually start drawing deck while upgrading treasure with Taxman. You can actually build up to double or triple colony fairly smoothly here, as Awaclus shows in the log