totally... I think both the Simon's (R32 and S14) are good examples of high power, longevity and hard use.
My last one lasted 3 years getting pushed pretty hard at this power and that was a 200,000+ motor that had god knows what happen to it in japan (car had harness marks, camera mount marks, the turbo was clearly either returned to stock or had been popped/replaced and repair work to both rear 1/4's)
I think it is safe to say that if you get a fresh-ish 25 and it's mainly street use, (and you service/tune it appropriately / look after it) there is nothing to say you cant enjoy being in the 300 club for a long time... you just have to be prepared that there is a chance it will let go. And if it's tracked regularly, then you need to be prepared that it will most probably let go... but then again, a built motor can let go too...
I have 2 mates that have 300kw built RB's and they have been through 6 motors between them over the last 5 years... I have pushed that power out of stockers and bolt on's and I only used 2. not true of all examples, but definately food for thought if anyone is reading this and trying to make the descision