If I have mining rig, I will do as you do. If you remember about 3 days ago, all coins are dump and if you buy it at that time, you already earn so many profits. Do solo mining is hard, not only hard to choose coin but also is hard about the electric cost. I support your decision and I don't say that is a stupid move but people must smart to take advantage of the circumstances
The best choice he made switching into investing in altcoins. We do have a lot of options on how we can grow our money that will earn a profit. Investing in altcoins only on those legitimate projects. A mining rig is not also profitable because of the high cost of electricity so we should do a nice move investing in crypto.