Bill, the difference is in the details. Nothing wrong with the hull designs or layouts. In comparison to pricier boats, the materials will be a bit inferior (zinc or aluminum fittings instead of stainless, slightly thinner vinyls, less heavy duty stitching, etc.). The wiring will be poorly organized and of a slightly smallish gauge. Carpets will be thinner. Fit and finish in areas you can't directly observe will be rough.
Taken care of, the Bayliner will last for years and serve well. Exposed to hard use/harsh conditions, it will deteriorate faster than a boat of higher quality.
Brunswick started building small bowriders in Mexico within the last couple of years; I believe it's the first time it was done with small, production boats. Lots of cost savings.
It's a good boat to buy used/well cared for because the depreciation is steep in year 1 of ownership.