Edit: Just giving my point of view. I've wrestled with cost/quality issues many a time
I can't speak for everyone of course, but here's why I got a CS hawk (coming this week). I definitely want a high quality hawk, and I'm willing to pay for it within reason (close to 4 bills for a GB seems a little high to me). My dilemma is that I really don't know what I want at this time. I know you can always sell something if you don't like it, but I decided test the waters with a CS. I figure for $25, I'll get something of some quality (workable) and find out what characteristics I'll be looking for in a better hawk. I went with the pipe hawk because it has the mid sized bit and a hammer poll. I may end up wanting something bigger or smaller, don't know till I use one.
As far as modding it? Well even us poor folk need something to do. Some of us cant afford to spend 1-200 on a good quality hawk. So you get a CS with at least a decent steel, and make it your own. Playing around with stuff like this is relaxing to me. I would probably be reluctant to do these kinds of mods on a nicer hawk, but then, it probably wouldn't need any as is. I personally think it's a great learning experience. I look forward to taking it on hikes and camping and seeing what I can do with it, and where I want to go from there.
Sometimes we just have to make due with what is within our means. There is another thing that kinda gets me about blades. I think back to the colonial/trapper eras. These guys had pretty much no choice in what they had available. The stuff coming out of England for trade was mass produced with varied quality. I'm sure they didn't sit around a fire talking about what kind of steel their hawk was made of or the heat treat or whatever. I just find it funny that in modern times, we use them as tools much less, but are much more picky about details. I've used this point of view to temper how I look at things. If I use it enough to exploit a weakness, I'll get another. It will have returned my investment.