I am scouting for a new HoL slave. My 3 slaves of the say are the following:

1027g for 75-75-86-65-76-72-66 totalling 515
1002g for 84-60-77-74-74-67-78 totalling 514
1002g for 70-76-72-81-68-71-89 totalling 527

Aren't supposed higher cost glads have better stats? Cause when I look I generally only pay attention to the price. Should I start paying attention to individual stats or is this a bug?