In my experience hops don't scale as well as AF and Starfruit. They take too much time to harvest and barrel. They are awesome for first year summer, though. I try to grow as many as I can with my first sprinklers, then focus on building 100 or 200 barrels through winter. By year 2, all those barrels demand much less fuss and bring in plenty of dosh with other crops.
Also your numbers are off for 2 reasons: 1st, Starfruit harvests in 9 days, not 10, with DSG. 2nd, as RedViper mentioned above placing them in the cellar (I think it's 15 bottles/week cycled over 8 weeks) adds considerably to their profit, making them comparable for much, much, much less work.
I currently have 250 barrels (I consider this a medium amount) and am done processing everything by 2pm, 12pm if I ignore my animals. That leaves me a half-day to work planting several hundred more on Ginger Island, and gathering mats for more barrels. I usually don't buy mats, that feels like it makes the game downright trivial to me.