West marine has higher prices than most. But they do match prices with true brick n mortar stores within a 50 mile radius. For me down here, Hodges Marine is 45 miles away.
As for trolling motors, sites like Bass Pro, etc would be what I look at. Even Amazon. Expect the price during the time leading up to Black Friday to slowly go up for an artificial "savings"
Additionally, most manufacturers make a special Black Friday SKU. A de-featured unit at a lower price. This is the MO with most things as Walmart and the big box stores. So carefully check the SKU number