When you have high-income buyers ready to pay big for what they want, you have a business model that can't be beat. True for porn, true for gambling. While many "early adopters" are geeks who will embrace a technology for its own sake, porn customers are goal-oriented.
So it was porn that pioneered the business model for videotape, porn that pioneered the 900 number, porn that pioneered the DVD and the paid Web site. Attempts to outlaw porn merely act as taxes on this market, just as in every other area.
Now porn is looking at higher capacity DVDs, where there is an ongoing format war between Sony's Blu-Ray and the HD-DVD standard. Sony says it won't sell to pornographers. Does this mean HD-DVD will sweep the field?