My parents have a place in spain, 2 bed house, cost them about €135,000. its really nice as well. I think they pay about €250 a year in service fees as well that covers all the pools & gardens etc. Another relative also has a place there.
Yet more relatives have places in Turkey & Bulgaria as well. Have to say though one of them bought into the 'Utopia' complex, cant remember what part of Turkey its in, but they paid top whack for it (well by Turkish property prices!) and the complex still hasnt been finished 2 or 3 years on. Apparently they couldnt sell all the lots so cant complete the shops bars pools etc until they do. That said, it is gradually getting better. One uncle has a house in Turkey that he is delighted with, but he is a builder & was able to sort a lot of it himself.
Personally, haven seen other peoples experience, I would not buy off plans. It costs a bit more to buy in an established area, but at least you know that the facilities are there. Be careful of getting pulled in at exhibitions though - my parents were going to buy a place off plans a few years ago in Turkey, paid about €5000 deposit but something didnt feel right & they backed out. Turned out the foundations never even got dug!!
I would say go with your gut feeling, pick somewhere that you KNOW you can get flights to easy enough. Turkey & Bulgaria have really cheap property, but I think some people are finding that the flights are really expensive & infrequent, so the holiday home isnt becoming quite the dream they wanted!!