This may not help you but my gf and I (early-mid 30's) are going to Ibiza in August. She's heard very little in the way of electronic music, aside from radio plays and I've been out of the scene so long I didn't recognise more than two DJs in the lines ups for the dates we're there
We already knew the dates we were going to be there, so first step for us was to listen to youtube mixes of the headlining acts from those nights. Then we looked at pictures and reviews from partygoers. That said and done, we've purchased tickets for Glitterbox at Space, and Paris by Night at Pacha. Both look like a great night out and pretty accessible music so it should suit her just fine..
You're right about the price. I think we're spending as much in 4 days in Ibiza as the entire 3 weeks prior to that in Morocco.. I know it will be worth every cent.
Good luck!