It makes sense because several nomad cultures, in particular the Scyths are known to have burial sites with rich and higly ornamented grave gifts.[/QUOTE]
Interesting you have mentioned the Scythians, as there is currently running at the British Museum, London an excellent exhibition "Scythians Warriors of Ancient Siberia". Runs until 14th January 2018 and in my opinion for anyone in London, well worth seeing. Website
www.britishmuseum.org