For weird die varieties, I often use ANACS and I also use them for relatively inexpensive errors. I have access to PCGS dealer pricing and that's still $40 for a mint error which works on major errors but not lower priced ones. Also, I did speak with ANACS and they will slab my SLQs by Knauss numbers. I have a good 100 coins I am going to send them. For virtually everything else I use PCGS. The main reason that I slab coins is to preserve their value, plus I play around in their set registry but don't take it too seriously. However, in areas that I play in, PCGS coins bring quite a bit more than NGC coins on the market. I collect Barbers, and the Barber people tend to greatly favor PCGS plastic and the best Barber Half sets have generally been in PCGS plastic. Less so for certain SLQs, but for early Walkers the differences at the FUN auction were dramatic for the most part.