Pros & Cons of Cultus Triathlon

I"m trying to decide between 2 multisport events on a September weekend. One is a Sprint Triathlon, the other is a Swim-Run (open-water swimming alternating with running - I will do a Pro/Con for that event the next time).

1. Pro: I'm familiar with Sprint Triathlon

2. Con: I'd have to increase training volume in 3 events instead of just one

3. Con: Hills

The bike and run will likely have steep climbs

4. Con: Increasing bike training outside would be difficult and time consuming

5. Pro: Easier for my Family to Cheer Me On

I would go through the transition area twice, plus the local lake has a waterpark where they could entertain themselves while I race.

6. Pro: Closer to home

7. Pro: Safer

Related to #1 - I'll know what I'm doing.

8. Pro: No New Equipment

9. Pro: Return to Glory

Maybe I should make sure I can still handle the 'classic' multisport event before I go diving into something new...