Well perhaps, but how significant an airspeed variation would you chose to abort at and how much time would you want to spend watching the speed tape and trend to assimilate it while taking off? Have you ever briefed how much trend variation and in which direction it would have to be for you to stop or go? I am happy to have the ADIRS calculate it and give me a wind vector. Any unbriefed tail wind (or more than 10 kts tail if allowed for), would be a no brainer - either abort, or TOGA, depending on where you were on the runway.
A couple on here have spoken about the 'small size of the wind readout', but the '320/12' takes up more space than the speeds on the speed tape, and together with the arrow indication is not that small really, and you only need to glance at the arrow.
I don't think I would get tea and biscuits for being careful.