Looks like you got your arms around it!
Let me just throw out a few other physics/engineering type facts between the two metals since you are wrestling between them…..just to confuse the issue!
1) Ti, by all measures, is MUCH stronger than aluminum. Just no comparison. The only reason anybody ever says a titanium anything is weak or flimsy is because the wall thickness was made VERY thin to reduce weight.
2) Ti has a melting point of 3135 deg F. Aluminum is 660 deg F. No matter what you do, you will never melt your titanium pot (unreasonable efforts aside). Aluminum however can be melted if you boil off all the water and let it sit on a wood fire for a while. If you always keep food or water in your aluminum pot, it is in no danger of melting.
3) Titanium is WAY heavier than Aluminum…..actually about 1.8 times the weight of aluminum….almost twice as heavy. Typically, people think it is lighter because it is so strong, you can make things like pots much thinner and get a similar weight. However, at the end of the day, one cubic inch of titanium will weigh a LOT more than a cubic inch of aluminum.
4) Aluminum is a MUCH better conductor of heat than titanium. In general, aluminum is about 10 times more conductive….of heat. This could be good or bad. Wall thickness plays a role in that, and titanium's wall thicknesses are typically thin. Also, a metal that conducts heat INTO your food, will conduct it OUT of your food just as quickly. So, while titanium might be a bit of an insulator, that is "bad" for heating your stuff up, but "good" for keeping it warm after cooking.
5) Titanium is MUCH more expensive than aluminum. Check out pretty much any comparable pots, the aluminum version will cost you at least half the money…..just the price of the material.
Anyway…..that last one probably drifted off of the engineering stuff…..sorry.
Rand :-)