That's a very good point. I included a "Cost Comparison by Bandwidth Usage" section that shows the cost for Digital Ocean compared to a commercial bonded solution. At 10TB the monthly DO cost goes up to $84/month which is significant, but if you compare that with a commercial solution that gives you a bonded connection (Speedify) they would charge $120/m for 10TB.
If you used Oracle cloud, I think 10TB is still in their free tier so you'd be looking at ~$15/month.
If you used Oracle cloud, I think 10TB is still in their free tier so you'd be looking at ~$15/month.