Personally, I feel that it might be a little more affordable but not that far apart.
And like @floridarob mentioned, there's no gay gogo bars like those in Thailand but the apps are full of guys offering their services. The rates are generally cheaper compared to Thailand, with the few exceptions.
Jakarta city might not have much in terms of tourist attractions but the food/cafe scene is better than Bangkok, for me at least.
I do alternate between Thailand and Indonesia often, just for a change in scenery (and types of guys I'm looking for).