Are homes in Gunbarrel really a third less expensive than Boulder?

Homes in Gunbarrel are not only less then in town Boulder, but they tend to be on larger lots. Entry level starts at around $300K, and in the country club area go up to $1MM, vs in Boulder a range of $400K-$2MM. $450K in Gunbarrel will get you an updated 1990 house with 2300+sf not including the basement with 2-car garage, while in Boulder that $450K is a 1960s brick ranch around 1200sf, maybe with a 1-car garage.