Characins

Just out of curiosity...

How much would you pay for convience?

Would you rather pay, lets say...

$0.50 a month for dry ferts. They take some time to mix up, and you have to more or less figure out your own dosing regime, but they are cheap.

or

$1.50 a month for liqiud ferts. No mixing, just reading the instructions on the bottle, measuring it out and pouring it in the tank.

or

$3 a month for a new, very convient way of dosing, something that hasn't been invented yet, but just for curiosity.. Something that is just premeasured, something you can just drop in the filter or drop in a cup of water and pour in the tank every other day. Probably 2-5x the price, but more convient.

How much would you pay for convient fertilizers?