I would say the ProTech STAR1 Star Case is still the best one out there. I've always meant to buy a couple hundred to protect my TVC carded set, but never got around to it yet. That, and they're not cheap. Apparently there are less expensive options available, but not as good fit/quality (you get what you pay for):
http://www.theearthtoymall.com/stcawacafiso.html
There's also the FigureShield ST-69, though I am not as familiar with them so can't say how they compare to Star Cases. The price looks to be similar (or maybe a bit more):
https://www.figureshield.com/st-69
