250-500cc Feeling guilty on my 09 wr300

I just realized I never bothered to look at the total miles on my Trailtech explorers computer. I have had it a year and it was reading 1500 miles as of today. Got the bike two years before. I am on original piston.
So..
-perfect compression
-starts up on frist second kick everytime
-runs frickin awesome
-approximately 4500 ish miles
-original piston

All i ever did was clean air filter and change gear oil and go. Should i give her a new top end or leave it as long as it runs good and has good compression?

I don't see the harm in leaving it as long as your using a compression tester and not the "feel" technique.

Could do a re-ring and check things out if you want to.

I believe it's a cast piston, correct me if I'm wrong. Pretty sure OE is vertex, which is cast.With that many miles I'd be worried about breaking a skirt.

I seem to remember there was a guy on tt a while ago that had a 250 with around 8500 mles on a signle piston. Not that I would go that long but man...

Vertex is the stock piston. It's a coated piston & I found after about 20 hours that the coating on mine was wearing. I just replaced it and away I went! Its worth taking a look at, very simple task.