This has the same drawback as displaying actual in-stock artifact counts with the recipes. The system would have to check your entire cargo (well half of it or so, but you get the point) every time you open the Lab or click a build, rather than checking the relevant 2 or 3 artifacts as it is now. Yes, it would be nice to have it set up the same as the badge market, but remember... There's only 6 badges that need checked, there's quite a bit more artifacts that would need checked. +1 for ease of use, -1 for creating unnecessary lag. The potential lag is probably the reason why Build New Structure on planets only checks available planet space rather than your mineral/credit totals as well.