I've never used either personally just because I haven't had a need over the past 15 years (typically only painting one to three figs at a time with long breaks inbetween projects). Have the newer contrast paints mostly replaced the dip method as the technique of choice for getting shading quickly for large amounts of figures? Even if you don't paint mass amounts (like the original dipping method was typically used for in the early 2000's ala hordes of orcs/nids/etc once it broke out of more niche historicals), do you still use dipping regardless? I'm considering trying one or the other for a single large figure (a fantasy style giant with flowing organic lines/clothes/flesh) and was curious about what folks are doing now. I haven't looked at the prices of either (whether official wargaming dips, original wood treatment varnishes, post-varnish dullcoat, and
GW/reaper/army painter contrast style paints) so feel free to comment on that aspect as well.