I've got 300+ bonuses in my own lil' database, a good number of which I've done, some left to do. So I'm probably good to go.
I see your point but I do think it's important for people to get the most out of the good cashable bonuses with low WRs, which is why I recommend they start out slow and bet the absolute minimum. Those are in short supply and you only get one crack at them.
More importantly, though, is that I try to encourage people to start slow so that they have the best shot of building a cushion that lets them ride out variance and get the full value from later bonuses. I was lucky when I started and had some good scores, which provided me with the bankroll to really take advantage of all the bonuses out there, both sticky and non-sticky. If I'd bet $10/hand on Starluck and Planetluck and busted out, I can't say I would have stuck with it. That's pretty tragic as the real value in the casino bonuses are with the later sticky ones, since there are so many more of those available.
So yeah, once you have a solid roll you don't have to bet the minimum, which'll speed up things dramatically and increase your hourly earn. At the start, though (especially if you're nervous about the whole casino bonus thing to begin with), I think it's important to go slow and bet much smaller amounts.