I don't know if you were on the Internet in 1998. I was. The Web was useful, mature, and had tens of millions of paying customers in 1998. In contrast, all the people I have known to use Bitcoin and other cryptocurrencies only do it for speculation.
You bring up PayPal and list eBay as a "defunct also-ran." The only reason people started using PayPal was to shop on eBay, and the only way PayPal got anyone to start using them for payments was to bribe people with $20 referral bonuses, which they could only do due to their VC firehose of money, and a huge spambot campaign where they pestered eBay merchants with messages along the lines of "I'd like to bid, but I can only do PayPal." (see The PayPal Wars)
PayPal is a great historical lesson in explaining why BitCoin and other libertarian hash chain schemes will fail as a currency, because PayPal was founded on the same deluded libertarian fantasy:
"“PayPal will give citizens worldwide more direct control over their currencies than they ever had before,” Thiel predicted. “It will be nearly impossible for corrupt governments to steal wealth from their people through their old means because if they try the people will switch to dollars or pounds or yen, in effect dumping the worthless local currency for something more secure.”"
https://www.cato.org/publications/commentary/who-killed-payp...
The real value of PayPal turned out to be fraud prevention and consumer protection, something that hash chain schemes lack by design.