It is nice to have one track drop that you like in your inventory. If you don't use it, it's pretty and you can make it a small room decorative piece. (I recommend chromed steel track drops for this because they luster after a good rub ... drool)

I ride with a track drop myself for the streets. It is totally street-worthy if you get the right fit. Getting this right fit could take forever and some money.

I know people ride really narrow track bars like 35cm even. Those are difficult to ride. You gotta get a right width; I think you need to opt for wider ones for streets. I m riding 42cm right now.

Keep a road drop in your inventory too. You can learn a lot by setting up position with the regular drops. You can use that know-how to work some new setup for track drop (or any other bar for that matter).

P.S. ... If you aren't sure, go find used ones. I wouldn't throw large money on things I don't know anything about.

Note:
Track Drops:
B123 Drop 175 Reach 95
B125 Drop 152 Reach 92
Deda Pista Drop 173 Reach 109

Road Drops:
B115 Drop 140 Reach 100
B177 (noodle) Drop 140 Reach 96
Deda Newton Drop 135 Reach 80

I gotta whole bunch more ... but I think you are safe to assume swapping to track drops means your drops gonna be lower. But reach data is all over the place.