Laminates for Wardrobes?

Can someone tell me how do I know what thickness of laminates is ideal for wardrobes - inside and outside. My carpenter tells me 0.8mm for inside is good as there will be no bubbles formed when gluing the sheet to the board.. but the plywood store man advises 0.7mm is enough for insides.. Im trying to work this out on a budget and there is a good difference of at least 150-200bucks (Rupees) per sheet for every 0.1mm difference in thickness. Any help is appreciated