I've been in a DR1050 Group since January 1990. Our engine is over 2300 hours, hoping for 3000. It's been u/s for 16 months, getting the wing repaired and recovered. Not an accident - glue failure detected on check. We've had the wing back since before Christmas, but are slow re-assembling.
Airframe is 100% repairable, so unlimited life. But hangarage is essential.
Check Group financial status. You're buying a share in an aircraft plus the Group kitty. Check if it's Night and IFR capable. It might be.
If you're lucky, many of the Group may not fly much, letting you get more than a fair share.