Condition and motivation probably interact rather than compete as explanations. A vacant home needing work may have a carrying-cost-sensitive seller, while a vacant renovated home may not. I’d avoid using the overall 14-day figure to set an offer. Compare each target with recent completed sales...
Obtain realistic insurance pricing and deductible information before settling on the maximum purchase price. The cheapest premium is not the only figure that affects liquidity; the amount you might have to fund before coverage responds matters too.