So main difference is america vs. europe. In ticketing business i will go for America. Much more activity so much more opportunity.
America is much bigger in case of ticketing.
Look at those big sport events where millions are watching and buying tickets.
EventChain will be bigger then Aventus!
True with America, but Europe has also a big soccer culture. But beside that, sports are a small business here.
On the other side, in Europe, especially in Germany (don't know about other countries here in Europe), you have a big concert and festival culture, where a lot of blackmarket tickets get sold.
As both projects are focusing on different areas both will probably also go for a different main market Anyways, it's good to start in different regions.
Soccer is big but the black market in soccer isnt the same as the sport black market in America, so much more money there.
Aventus will be great by doing concert in Europe and certainly festivals.