PRK is $2990 and all laser LASIK is $3990. I can see 20/15 in both eyes. PRK takes at least a week to start seeing good so unless you want to be blind for a week, do one eye at a time with a month in between.
My experience with PRK was that I could see pretty good for the day of surgery and the day after. On days 2 and 3 the eye heals over. It's very itchy and you want to keep your eyes closed. During this time your vision is very blurry...