Capetown said:
Thanks Gary!
Any pitfalls, websites I could check for reference and prices, difference in pricing between boxed and loose stuff, that sort of thing.
Ok, firstly decide which range you want. There are several different space series. I just went for classic which is basically the sets with the single colour spacemen (White, Red, Yellow, Blue and Black) This is the older run
The monorail...which is an awesome piece...does not belong to the 'Classic' series, but is a piece worth having. There are two very different types of mono rail..the second is a much darker looking one!
Bricklink is a good reference guide as to what pieces fall into each series. Here's the Classic run...
https://www.bricklink.com/catalogList.asp?catType=S&catString=34.314
Generally speaking they aren't impossible to find though there are a few I'm still trying to get for a reasonable price boxed. All of mine are boxed but I've never been interested in Sealed. Some of the rarer boxed ones for quite a few hundred. Loose ones start much less obviously.
You may also want to consider the state of the box. Often on the smaller ones the end flap is completely missing. With the larger boxes you might want to consider whether the pastic tray is present or the plastic film under the lid is still intact. Collecting loose has none of these worries,
A quick eBay search will throw hundreds your way.