I'm not surprised - I think I've pulled in about 140k trophies so far to get to about the same place (reset 4, 5th page) but I reset as soon as I was able. As of this page none of the prizes are compelling enough to get me to want to do a full clear (lvl 20 manyus, coins, seeds, gifts).
As far as I've gotten (see above) the spin cost increase is steady. If I remember correctly, for the Pine event the cost stopped escalating for the last 4 pages but I could be misremembering that.