The next photo was taken with a used telezoom that I bought for $140. It's a Sigma 28-300 lens (the old design). I used to carry it all the time because of the versatillity it offers. But since I bought the 18-200 VR I have used it only a couple of times mainly because of its poor low light ability to take sharp photos.
Besides that problem look how good depth compression is offered by a 300 mm lens. It can be clearly seen if you compare the relative size of the sun to the boat size.....

Nikon D50, Sigma 28-300, f8 , 1/40 sec, ISO 400 (I think s0)