Most of the replies, and my thought on the matter consider your overall workflow.
Consider:
The short term. How long does it take to extract, and is this a problem?
The longer term:
How big are you going to get?
Do you have space to store it for 50 or so weeks in the year? , as opposed to a smaller diameter extractor.
In my circumstances, I use an electric 9 frame extractor without issue for 1000lb of honey each year.
I can only uncap as fast as my extractor extracts, so my workflow activities are balanced.
Finally, how much harvest do you expect? Ive seen beekeepers with 50 hives producing very little, and a bloke with a dozen hives who considered 100lb per hive a poor harvest!