Shopaholic Husband

I need some advice PLEASE, my Husband is retired, but does help out as a homehelp, he does a good job, and is appreciated by his clients, thats fine, but now he seems to just want to shop and shop, having recently been a victim of fraud, he still hasnt learnt a lesson. He is on the computer for hours a day, looking at different sites for used goods, ok these arent cheap things, this time it is a MOTORHOME!he is obsessed with wanting to buy one, we owned one for years, but found it expensive in the end, as we didnt use it a lot, so sold it. Now he is determined to buy another one, today he is looking at these things in Germany, we live in Sweden, to travel to look at this model pictured on the Internet, involves him flying to Germany then taking a train to the place where they are selling this, so this is all going to COST, why not look at a little more expensive motorhome HERE, where he could easily travel within THIS Country to look at one, I mean if he doesnt like this when he gets to Germany, well, what an expense. PLEASE can anybody help me as to a solution to this obsession, I am really worried, and dont know what to do, we really cant afford his travelling all over the place chasing a dream.