I think it was level 58 when I was able to build another factory. This allowed me to build 56-60 items in 1 go, as opposed to spending 5-7hrs longer when I was level 57 and lower.
I don't mind those tasks. I have lots of speed up tokens and I can burn through those glass fast, or I can sell them for 1 simoleon each to clear them in a hurry.
I actually like it when there's so many 4-7hr items in the GTHQ, it means I can stop making them myself for 5 days, and start using my speed-up tokens to build other items.
I don't care much about the value of the tasks, just as long as every player has the ability of reaching the same total score, given they complete every largest task assignment.
At present, it's all random. Even though 100 players might do their highest value tasks, they could still be 10-20k points between top and bottom. It's purely luck to get into the top10 and win a decent prize. Anything less than top 10 is a slap in the face in the current system.
Let us all compete against the scoreboard, not against each other. Let the game be fun instead of a waste of 5 days hard work...