I appreciate the reply! That's the rock I'm stuck between.
Upgrade the 180D with avionics a d an autopilot, or purchase the lower hour Arrow with waas and autopilot already in it. Although, it looks like the Arrow may have a pending deal already
I am based out of CYOO myself and we have a 180D exactly like you.
We in the partnership group went over it and ended up with the panel upgrade plus autopilot option. Now for us this has to be a group decision so there is an aspect of lowest common need sort of situation. However that said the reason we stuck with our plane:
1) Known quantity, we have fixed up so many things now it feels like we are basically good for a while. The group spent something like 25k on the plane before I join and a fair number of AMU since. A new to us plane would likely need similar amount to address deferred maintenance etc.
2) Proficiency level. One of the partners is a every few month kinda guy. The rest of us felt like if we get something faster more demanding we could be setting him up for a bad one.
3) Insurance. That cost more with retract etc.
4) Cost per hour. o-360 is pretty well known quantity with over haul cost is less then a 6 cylinder and decent gallons per hour. Some of us need to build some hours for various ratings so this is something to consider. Heck a good number of flights we take are just local north to bore holes in the sky, do we need faster?
5) Most of the time only 1 or 2 person in the plane so while some of us would like more useful and room on average 98% of the time there's no need.
Why some of us slightly regretted the decision to stick with the plane
1) Right after the decision was made and we sent the cheque to the shop to order the components, two of us went on different days when the winds were high and got 90 kn ground speed approximately at 75% cruise and well the buyer's remorse came quickly.
2) And well it's still only got the 1 darn door. it's not great for passengers and people who don't like GA.
3) Space yeah even with me and my wife's modest height there's not a lot of space for kids behind us.
4) Resale. Down the road would we lose a lot of what we put in because who would want to pay for a Cherokee with a new panel and AP? In some ways our decision is really specific to our mission which may not fit with what people looking for planes with similar avionics wants. At a minimum they would ask why spend X on a Cherokee when X plus bit more gets you faster right?
5) For the cost we are sinking we could have gotten something with more speed that comes with similar equipment we are now putting in.