If they were on Amazon, even at slightly higher prices, I'd already own some.
Going to a separate site; digging out and giving them my credit card number; then waiting for mail delivery.... just isn't how I (at age 78) do things anymore. Driving to a tackle store that is nowhere near where I live, isn't going to happen, either.
The easier you make it for large numbers of people to buy ANYTHING, the more those people will buy those items. Amazon has changed the way millions of people shop. Something like 6 Billion ($6,000,000,000.00) will be spent online today. Those numbers are up 16% from last year. There is a message in that statistic.