I have a small dilemma. Since a very young age I've had HO scale railroads. I have a reasonable collection of track, cars, etc. Nothing very valuable I believe. Mostly TYCO brand. I've been hauling it around in boxes for about 20 years. Now my two boys are getting old enough to appreciate it without trashing it. However, there is really no place in my house for a good layout. (8x4 plywood) and the garage gets too HOT. Now I am considering getting an N scale or Z scale set so I can have a reasonably interesting layout indoors. But then that just wipes out the whole point of 20 years worth of storage. My preference is toward the smaller ones - it always has been. I just can't bring myself to chuck out the older ones. Money-wise it is not really an issue. Mostly it is space and sentiment. What, if any, are your thoughts on this? I'd really appreciate hearing some other perspectives, particularly from model railroad enthusiasts.