I've lived in Jomtien the last 2 years after 18 years in Bangkok. Came as a Covid refugee, wanting a less densely populated area. Jomtien fits that need, Pattaya does not.
I rented a 2BR condo on the beach for B10,000/m. I figured it would be raised significantly when my lease ends this month but the owner was happy to keep me for another year at the same rent.
There are so many food options. If one only wants to eat in pubs and western style restaurants, then one can easily spend close 1000 baht a day on food and drink. If one is flexible on food and seeks out restaurants, night markets and food stands away from the beach and tourist areas, B300 to 400 a day is easily doable. Cook for yourself, far lower than that.
I rent a older Honda Click for B1200/m. I only go on local roadways, no highways or long trips so I don't need a more powerful or brand new machine. Any trips into Pattaya, easy on the song tao (Baht bus)
Yes, prices have gone up like they have everywhere but not difficult to adjust to.
A friend just this past week found and rented a beautiful ocean view, 80s/m 1BR apartment on Pratumnak in an older building for B15000/m. Reasonable prices still exist if you do your legwork.