Shiiit lets just say when you add up the tickets, partying, food, gas if you want shoot somewhere else close you're looking at a 600 to 800 dollar weekend. Ive at least flown a couple out with the decency to pay for some of the food and drinks so theres that. You times that by 7 and do the math smh.
The only way i can explain it is its an ego thing. Flying a girl out, wining, dining, partying does make you feel good. Same reason why people buy and do all types of expensive shit they dont need to.