Hello,
We own a property in Altinkum that we have hopefully sold after 2 years on the market as we prefer
Icmeler and bought there last year after holidaying for about 5 years. If you love Icmeler, you'll hate Altinkum as it's totally different and it is very large and getting bigger by the day. The apartments are everywhere and yes, you can get them for £17k but £35k is more realistic, but you'll walk about 2 miles to the beach or the beach bars. When we bought ours, it was about 3/4s of a mile from the town and we were on the edge of everything. Now, everything extends for another 2 miles or so right into Didim and further back past the Apollon temple.
The bars are either 'Little Britain' or Blackpool types, not as friendly as Icmeler and it's a Turkish resort in the summer, so most of Istanbul and Ankara visit their apartments as well. Beach space is normally standing up or a mile away on third beach, but now they're building a marina near there, so not much space left now and the bay is reduced in size as well.
We were tempted by the prices in 2004 when we went to Altinkum for a fortnight as you can't get a good family room with seperation there and bought a 3 bed apartment and used it well, but we had to come to Icmeler for a few days every time we were over. If you buy, I expect you'll do the same and it's a 420km return trip. One thing I was told recently was due to the large number of new apartments and the 16% commission paid to the agents, you won't sell a resale property for more than you paid. Once all the new ones are sold, you might stand a chance, but they are never ending.
Hopefully I've done a good job for John and Rami here as I know they will agree with me. Icmeler is a far superior village, more friendly and a home to come back to year after year.
And the Efes is colder!