$75 per 100x in 1992-inflation-corrected dollars vs. $130-$140ish per 100x hotstamps in 2020.
That's less than 2x the cost. And that's not terrible given cost increases over time. Assuming a 3% year-over-year cost increase, 100x solid hotstamps would be over $165 in 2020. Seems like they've had damn fair pricing adjustments over time.