We are very happy Spotify users, it's the best bargain on the net.
Just bought a Pure i-10 docking station and it works fab with both our iphone 4s.
Was thinking of buying an older - maybe first generation - iphone so we can leave it permanently on the docking station at home and access Spotify via wi-fi. Wouldn't have a sim card or be used to make calls. On ebay, old iphones are quite cheap now.
Does this sound like a plan? Any issues to be aware of?