I actually have a set of Shimano ST2300 brifters that werre on my wife's old road bike that I am converting to a flat bar. Since my road bike is a bike I have cherished for a long time, I really would like to get little higher quality shifters. Most higher end Shimano 8 speed brifters that are available are used and may or may not function very well, or, very expensive NOS for 90's vintage brifters. That is why I think Campagnolo 10 speed may be a better way to go.
John