I'd say "under $100" if that was an option. The value of a knife depends on a lot of factors, including what you expect of it. The biggest or easiest variable to talk about among reputable Chinese manufacturers is blade steel.
At least relative to the current budget market, I'd consider 8Cr13Mov or lower members of that series to be obsolete. Despite some recent defense of 8Cr13Mov, it's relatively high toughness, and ease of sharpening; ratings that place its edge retention on par with 14C28N fail to differentiate the quality of the edge over the course of its life. The extremely sharp fine edge that is so easy to put on 8Cr13Mov doesn't last long at all. It quickly degrades to a ho-hum working edge that represents the majority of its life. A similar edge put on 14C28N or Nitro-V will feel better for longer over a similar lifespan. Meanwhile, either of those steels is tougher and 14C28N is much more stainless.
Depending on what a person needs, the quality budget spectrum in the current market starts with either D2 or 9Cr18Mov. Chinese D2 has issues but its edge retention is universally better than 8Cr13Mov. It does best with a toothy edge and the freedom of keeping to lower grits may help to mitigate some of the increased challenge in sharpening it. It's worth mentioning that D2 is a semi-stainless steel so care may be needed depending on the user's environment. While some research has to be done on which brands are reputable, you can find reasonably well-made folders in Chinese D2 under $30 and a whole lot more under $50.
9Cr18Mov is the first respectable member of the Chinese alphabet series. It's an analog of European X90CrMoV18, which is basically 440B plus extra chromium and molybdenum. When the rubber hits the road though, differences in edge retention between production knives in 9Cr18Mov and 440C come down to heat treatment. The Civivi, Sencut, and Ferrum Forge knives from WE tend to get an excellent heat treatment. 9Cr18Mov has lower toughness than the other steels mentioned so far but not worse than 154CM, N690, or M390. Where 9Cr18Mov really shines is in corrosion resistance. It is extremely stainless and fills this role as the partner to 10Cr15CoMov in Civivi's Damascus. There are lots of great modern folders in 9Cr18Mov in the $30-60 range.
10Cr15CoMov is a Chinese analog of VG-10. It's a reasonable EDC steel and shows up in some $50ish knives. Stepping up a little, there are plenty of quality folders in N690 and 154CM within the $40-100 range. Those are decent steels with 154CM tending to be better on edge retention and N690 being better on corrosion resistance. K110, a German analog of D2, also shows up in this range. Some of the Chinese companies specializing in D2 have started importing K110 as a more premium option. It might be a little better but by how much, I don't know. While these steels might get better overall edge retention versus Nitro-V and 14C28N, those steels remain some of the best in the budget realm. They are fine-grained, tough, easy to maintain, and supposedly pretty forgiving with respect to mass heat treatment. I prefer 14C28N for its higher edge retention but both are excellent choices under $100.