Hi,
Be very careful about Bulgaria, it is over hyped and there is an issue about oversupply. I believe there will be problems when people come to try and resell becuase of the huge numbers of apartments there. It's also difficult to get to Bankso, 2 hours by road once you're in Sofia. Try Austria it's only a couple of hours flight time away and you can get stuff cheaper than Bulgaria. But, go for high altitude for a longer snow season, particularly in relation to this year's lack snowfalls.
Always source your own data and don't believe figures that are being bandied around because the capital appreciation in the market is not what people are saying it is, therefore, check the official figures.
Good luck,
Simon.