I thought you didn't like Bitcoin? 20 years since Bitcoins inception would be 2029. The world population would be around 8.5 Billion by then. If Bitcoin is used by 10% of that population that puts the userbase at 850 million. This is significantly larger than the userbase is today. This means Bitcoin has a bullish future. More users on the network = higher coin price (metcalfes law).
Will you buy 1 kilo tomatoes for $25 ? The same is for Bitcoin. Buyers needs a price.
Not a correct comparison, the fact is that a kilo of tomatoes will not buy expensive because of competitors who will offer a price lower, bitcoin has no competitors, so for him there can be a fair price of $ 100,000, in this situation popularity is important and not the value itself.