I've seen palladium maybe once on the coin market. People usually don't carry it as bullion, even the big bullion dealers around here. The one time I wanted to buy some there wasn't any, it's one of those things. Gold is more reliable, in my opinion, and easier to buy and sell than palladium even though it's rarer and has a huge potential to the upside.
Palladium is usually an alternative to nickel when making 14K white gold. Check a precious metals refinery in Europe to see if they carry any .999 palladium because some places in Europe (I think it's only the EU) by law ban nickel jewellery due to allergies.