i understnd what you are saying now. However, if you think of the resale market, the 'premium' which the 5130 has over the 5110 is purely because the 5130 is a newer model, so, the 2nd hand market would make it seem it is more 'expensive'.
But to think it through carefully, for example, 25% off list price for 5110 on the 2nd hand market vs. a 25% off a 5130 on a second hand market would draw us to the same conclusion that 5130 has a 'premium', purely those who bought the 5130 paid a higher amount for their watch from the retailer!
Now's too early to tell if the 5110 would have a stronger command over the price in the long run if your are purely thinking of the 2nd hand market.