Treadmill Max User Weight Confusion!

watermelon88

I've been looking at buying a treadmill for me and my fiancee, all the ones I've seen have very different weight limits.

How important is the weight limit when buying one? I read that if you want to run on it you need it to be able to handle your weight and then some, but it says walking on it doesn't put as much stress on it.

I'm having a hard job finding one with a high enough weight limit that is within my price range.

We've been looking for one that has a 25 stone weight limit on it but they're all close to £1000 that I've seen so far.

Does anyone know any cheaper places to buy one with that weight limit? Or would we be ok getting one with a lower weight limit if it's just for walking on not running?