The boats that he drives can be seen at www.puffin.org.uk
(look at the RIB section, pictures are at the bottom of the page) he drives them all including the jet powered cat. I know I can't compete with that and as long as he is building up his experience and hours on them he is happy.
There is no doubt that blowing my whole boat budget I could get a great RIB, but that would be selfish against the rest of the family. I spoke to Redbays when I was first looking, they are fantastic boats, but too much for me to give someone for a 16th birthday present.
I was quite happy to give him a bit of the budget, but we need something else that the whole family including the youngest can use. The other option is to just get one bigger boat, and yes we could get something a bit nicer with that, but do you really need it, when the other would do. I would think it would be too big for him to cruise around on with his mates, and who would pay for the fuel? I think I know.