Well 32 seems reasonable but if your margin of profit is crap then why. If they hard fork to implement casper like they said they will probably have to do then you thing a ETH Classic 2 emerges. I would have to bet so.
They said is 5% per year, even the US treasure debt you buy is worth lot more than 5% per year, so you will have the profit of eth price rising + 5% per year, for loyal holders this is good but for people who want profit, is horrible, imagine you buying a gpu and from that gpu bought you get only 5% per year, electricity free of course as staking is electricity free. So to roi that gpu you would need 20 years hehe, my point is, if you buy eth for stake profit then you will be wasting your time. Most people want fast profit. If eth devs dont give a reason to hold eth other than that stupid 5% interest per year then i see a slow rise over time, maybe that is what devs want. Well on a bright side, right now holders dont get anything hehe, even decred which is pow and pos hybrid gives around 3% per 4 months which if you think about that will round up to 10%, that is double of eth devs will offer stake holders.