Before the rules were edited for clarity and simplicity, the rule about buying things stated that sims were allowed to 'buy' and place two items from any source: rabbit holes, consignment store, world adventure vendors, lifetime rewards, career rewards and buy mode (I think that's it?). Exceptions are consumables such as food (must be used up when you move), recipes and music scores. From memory, bait did not qualify as an exception. Does that help?