I would check the model number very carefully. Often times companies will put together packages or variations of a product for a high volume seller such as QVC, HSN, Amazon, Walmart and such. They are built to the specifications of the seller to be sold at a certain price point. When a high volume seller is selling thousands and thousands of machines it is worth the effort to the manufacturer to make some modifications to have the large volume sale.
On the flip side of that some machines can't be sold on line because the manufacturer won't allow it. Janome 8900qcp is an example of this strategy. At one time it was allowed but not at the present time.
It's very possible the small dealer wouldn't be able to match the large volume seller's price because the small dealer probably paid more wholesale for the machine than the large volume seller. It's at that point the buyer has to ask themselves what is more important, a low price or supporting a local merchant. I recently bought a machine and didn't purchase it from the local merchant. I would have preferred to but they gave me such poor customer service when I was shopping I didn't want to do business with them.