I got a platinum card as an experiment this year and nominated another frequent flier friend for the companion card, and as quite frequent LCC fliers we do seem to get good value for lounge access. It depends how you value lounges really but it's a very decent substitute for earning access via status. Though there's a lot of chicanery with booking fees now - I was in BHX today and they attempted to charge me a £10 booking fee despite the lounge being half empty (or half full, depending on how you look at things). I declined the offer and went to Burger King.

I retain a BA premium card for the 241 which with Avios earning reductions is going to be even more valuable I suspect. There's a bit of money that comes back on both cards from offers and general spend. I have a gold card which I'll dump within the initial 12 months. I didn't get bonus offers for any of the MR cards I currently hold.