One thing that struck me about Delphi, is that the business model has stayed the same for decades. If you want to access a remote database, you have to go up to the Enterprise edition, which costs US $4000 [1]. That's the real turn off for me. Why should a dev product cost more than, say, $300 these days just because I want to use a 'real' database?
[1] https://www.code-partners.com/offerings/delphi/