I agree with both commenters, below. Redirect traffic to your new site and use the old one to focus on a related topic.

Mickeyb

Do you still get traffic to blogspot? Then redirect to your site....there are a few ways this can be done.

Komusta po!

Hi Hi xD
You may keep your old blogspot and maybe turn it into something else instead. no need to delete.

Cheers,
Eugene ^_^

Can you post the answer to your question?

I would reach out to Kyle or Carson, they're the only people who can answer the financial stuff.

You've already covered the main reason. :)

I write content to stimulate thought by expressing my opinion. I hope it generates traffic and build sales. I also write content because i like to write.