Hi Daniel,
The choice is pretty easy.
Motul 300v Chrono (10W40).... as Johnny said.
I have tried a ton of different oils as I used to do 5000km changes.
I have only used Synthetic oils though with the exception of one change (5000kms) of Royal Purple.
Shell Helix Ultra, Mobil 1, Motul 8100, Valvoline, Penrite Syn, Castrol Edge, Amsoil (10W40), RP, Nulon... cnbf trying to remember others...
I have been using 300v with 10,000km changes for the last 40,000kms and I can tell you that it is like a different engine when compared to the other oils.
Revs easier, "feels right" as opposed to others that felt too thin (mobil 1) or like the engine was being choked (Syn - only lasted 2 weeks, I couldn't stand it). The Motul 8100 left a black sludge which was removed with an engine cleaner at the next change.
If $150 every 10,000kms for oil is too much, I would probably go for the Nulon or Amsoil.....
..... but you did say you wanted to put something in that would have the engine running beautifully after 70,000kms.
Since you do a lot of short trips (my average trip TO work is 65kms), I would go with the best oil you can get.
Also, make sure you get a good quality filter. I can recommend either the K&N, Veruspeed or Amsoil oil filters.
The K&N should only set you back $20 and is very good quality.