That little tire price comparison I did shows the PR4 to be a good deal.
Whether mark-up to mark-down, or not, Revzilla had a good price on them.
Each spring it seems that there are shortages in the most popular tires. That's why I ordered the set of PR4s to have here waiting for the RS2s to wear out.
January was a good month for an extra set of the PR4's. I just put on my set yesterday, ordered in January.