Assuming you want a serious answer, a very HN one is to discuss scalability, and unlike rope or cables or fiber, towers most certainly do NOT scale merely linea

Assuming you want a serious answer, a very HN one is to discuss scalability, and unlike rope or cables or fiber, towers most certainly do NOT scale merely linearly with length. Its way, way worse. Or if you prefer to think of it this way, we don't have enough income inequality and/or world wide wealth for one plot of land to "deserve" a 10 kilofoot tower. Another fun term to google for is Euler and column buckling. That's why we don't have 75000 foot tall radio towers, which at least superficially would seem to be a great idea that could get past the scaling costs because potential revenue would scale even better with surface area within line of sight. Or even more interesting a 75 kilofoot rocket launching tower so you could use higher Isp vacuum rated nozzles at launch (if you tried that at ground level they'd buckle from the outside in)