Me again! (yikes!)
I'll second Emmanuels observation about mileage.
For me, the mileage is not a great concern. Condition is the important thing.
A really big plus (to me) about the 428 is the availability of ALL the mechanical parts.
If you throw a rod in a 428 --- No Problem! Not only are there NEW FE blocks being made today in both iron and aluminum (as well as every other engine component), with a little effort expended in searching, it's still possible to obtain used original, date-correct blocks at very low cost (if that's "important" to you).
(and with 428's, WHAT, exactly IS "correct"? There are no engine numbers, no clear dates of manufacture, very skimpy factory records. Who Cares? Same thing with "Shelby Cobras" ! "Original"? well......, sure!)
You can purchase a fully assembled, blueprinted FE engine for the price of a belt change on a Ferrari.
If you throw a rod and blow a hole in a Ferrari block, **poof**, there goes most of your investment in the car and tens of thousands of dollars, pounds, euros or Kroner just to get it running again. What fun is that?
Although everyone has different reasons for owning an old car, for me, making use of the car on the road is the raison d'etre. Staring at it in a garage and polishing it every month is kinda lame. Afraid to drive it? Why have it?