My experience is that it is a lot easier to get to Asia than to CR from the west coast. The flight times are long, but it is easy to find a nonstop flight or a flight that lands for refueling only to take off again in 30 minutes on the same airplane.
For me, when going to CR, I usually have to change planes and wait a few good hours (sometimes as many as 5) for the next flight. And then, when I get to CR, the price for hotels, food, drinks, girls and taxis are all more expensive so Asia for even a week is reasonable for Californian whore

mongers.
Another factor is that CR only has a select few hotels that won't hassle us whore mongers.
Plus, I like the demeanor of the girls in Asia way more than that of Latinas (YMMV).
As for negotiations skills in Asia, it isn't so much about money as it is about covering what they are willing to do in bed for the typical going rate.
I paid anywhere from 33 to 50$ for short time and long time in Asia. I defined short time as the time it takes for me to pop 2 times. It is rare that they hurry the process so take a shower, do the first pop, shower, rest, relax, watch TV, take a few pictures, play a little with her, then eventually have another pop and then I'm actually ready for her to leave since I don't want to spend the day in my hotel (this scenario for daytimers).
I took a girl to an Island resort - paid her 35 a day for 6 days and didn't buy her anything other than food and a pair of flip-flops. Another girl, I know that wanted to go, but the timing wasn't exactly right would have went to the Island for near nothing (she would have simply loved to get out of town for some free meals and a nice place to sleep).
I can't get the above value in CR, but acknowledge that depending on where you live, CR is still a good option for a lot of folks.
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