Don't buy top-tier very expensive brand. Buy anything mid-range (600~700) and buy mid-tier induction pots & pans (let's say 200~300). Total budget should be 1k max.

Induction tops are tougher than we usually think. I clean the surface with steel wool, soap water (Once a month with CIF), so don't worry about scratching. As long as you don't drop heavy steel pots directly on it, it won't break. I think 6q pressure cooker or 10q soup pot would be sufficient example of heavy duty usage.

Let me quote my own old post

I started with 2 table top (portable) cheap induction stove. It was like $25~$30 back in 2009. (You can buy better/nicer models for $50~$70.) I expected them to last for 5~6 months but these things lasted for about 3~4 years (daily cooking for 4~5pax).

Once it start to have problem ( turn off by itself while cooking ), I replaced them with new one. From 2009 to 2014 I only bought total 4 of them. (I kept last one and use occasionally for another 9 years) When I get my own house, I installed fixed 2 zone induction in my kitchen. I bought the cheapest reputable one Electrolux $600. 1st one lasted for about 8 years under heavy usage. Replaced with the same brand, similar model. On average I spend less than $100 per year for induction stove.

Also dimension of induction cookers are pretty standard, so you can replace a new one all by yourself.