Robed in eilat?
excuse me?
If you mean that prices are higher, it's becouse Eilat is located in Israel, which is a modern west world country, while siani is in egypt which is a developing third world country, and everything that comes with that.
If you look purely for diving, than the sites in siani are better than in eilat, that was overdived and quite ruined in several areas in the last decades (though there are still several quite good dives there that can fill a few days vacation).
On the other hand, if you are looking for a fun vocation that includes all sorts of entertainment that one can find in a modern city than you should consider eilat. It is way more developed than anywhere in sinai, offers a lot of parties, a good under-water observatory, lots of resturants etc. , and on top of it all, the chances of beduine picking on you (I take it you are a groupe of girls) the whole time is greatly reduced.
Another matter is that if you get to eilat you may meet me there
Anyway, as I said, dive sites are better in sinai, and hotels are also cheaper there so consider the whole issue.
Anyway, if you decide on Eilat, drop me a private message, and I'll give you some advice on which centers you should use, and where to look for deals (and who knows, maibe the use of my name may cut a-bit the costs if you say you'r my cousin).
P.S-
I take it theres another Israely here on the board??
Vicky?
am I not the only one any more?