mid 90s boats (196, 197, 205, sport nautique, echelon, sportster, sportstar, etc.) can be found from 6K-12K all day long. Add perfect pass with zbox (zero off emulator).... and boat spray only becomes an issue at 35 headwind or shorter. I've heard many 28-35 off skiers say that the perfect pass with zbox gets them within a buoy or two of zero off boats. These older boats weigh 23XX LB-27XX LB. The new ski boats weigh 33XXLB. Believe it or not the power to weight ratio is better in many of the old ones.
If I can emphasize anything on this forum.... please help your friends find budget ski boats to get them started in the sport. Over the years I've got 5-10 friends/acquaintances OUT of I/O's and into older ski boats. Sold a couple boats multiple times after the first purchaser realized the sport wasn't for them. Watch craigslist / SIA for good quality used gear to help them out. If your friends get hooked.... you may even get a driver for life ;)