Talking to an older Luger collector

[Zonaken]

Interesting debate...

So, as a newbie to this whole Luger world, I am frankly stumped!
I am reading & studying everything I can get in front of me, but am having a tough time figuring out which way I should go.
Do I buy an affordable collector or a nice shooter?
I definitely want to shoot the firearm, not thousands and thousands of rounds, but certainly want to get it out to the range several times a year.
But I'd never forgive myself if I ruined something historical.
...and I do want something reasonably faithful to the iconic nature of this firearm.

In general, how fragile are these Lugers?
What kind of failure rate can one realistically expect out of a 70+/- year old Luger?
Finally, how difficult is it to swap parts and still have a good functioning pistol?
Thanks - in advance.
Zk