so a few things that come to mind for me:
the visp i had was GREAT around town.
it was heavier than any aluminum bike really should be that lead me to believe it was overbuilt. i only had it for a few months so i can't really be sure how well it would have stood up, but it felt really comfortable because it was so thick and not necessarily very stiff.
the 6061 doesn't matter as much as the way it's treated and shape of the tubes. just because it's a different type of aluminum does not mean it will be stronger or weaker, stiffer or flexier, lighter or heavier. aluminum isn't like steel and construction and design have a lot more to do with characteristics than the type. generally speaking, 6061 is stronger.
but the new bike is a COMPLETELY different bike, and it may be horrible.
the trapb is ugly as **** and based simply on that, i wouldn't ride it.
that new trx999 looks pretty good though. i'd spend the extra twenty dollars or whatever and go with that.
then again i also ditched my bike for an ftp and the quality jump is exponential. orders of magnitude better. stratification levels of better.
for a beater though, if you want aluminum, it doesn't get more value-for-minimal-cost than the visp frame.
but put that fork in the garbage, it's a ****ing crime against humanity. worst fork in the world.