PSA raised prices the July specials by 25c/card from $6.75 to $7. Was as low #$%$ late last year. There is some national card show in July and that is the busiest month for cards. Coins are in their 6 month "slow" period now so the cards and coins sort of work well together to smooth revenue out.
PSA appears to have had a record quarter last quarter. All the card collectors are complaining about excessively long backlog times. So it makes sense to raise prices.