If you think you have horse problems now, wait until your horses get rained or snowed on - they HATE weather, and they'll blame you for it. Best to avoid the issue entirely by building a nice roof for their stables!
Stable Roof price in Growtopia: sells for about 3 WL, buyers pay about 4 WL (median of 107 offers from community Discords, past 30 days). Live price chart and the latest buy and sell offers.
Recently sold at: NNAAC, PAEKO, 7NAP, KRFU