i am agree with the fee you incur when you buying HD broacdcast equipement.
however it’s more time consuming to achieve a 1080i design project in opposition to a SD.
/refresh project/ram-previewing/render
and You must have a solid workstation to have fun to create in a HD world
with a budget of 5000$ for a motion design project (50hours) in SD,
i think you can double to make it in a HD. (100$x100hours)
I am ruminate this business aspect
thanks for your contribution