What would be cool if you can launch an IT company that does some service hosting e.g. mail and you can own a data center. Would be cool to setup the datacenter also with racks, cooling, video surveillance etc. and if you fulfil all these requirements you can get your data center certified which adds interest for more companys to host there.
Also you need IT Support and system engineers to run everything.
Also a car-dealer / garage style business would be interesting.