Could you define buckets of cash? On the low end, one gets 30TB/month (1gbps uplink, 200mbs guaranteed) included for ~60 Euro a month, or 100TB for ~160 Euro (for a single server, outbound) at Hetzner:
Such a single server, isn't the same as a CDN of course, just curious what you consider "buckets of cash". I see cachefly asks for 400 USD for 2/TB a month, for comparison.