We know the setup for mining a bitcoin will cost you a lot now, so do you think instead of buying a setup just use the fund to directly buy bitcoin?
Directly buy for me. Well this all depends on several things. This is what I look into;
1. Electricity bills, if you're in a country where electricity is really cheap well you can consider.. If not, better invest than sorry.
2. Countries weather condition, well I think you know that mining creates too much heat.. so putting up one in a hot country will degrade the rigs more. Or will cost you much more electricity.
3. And you can google some more
Take also into account (though this Ive not yet calculated). Exchange rate in your county. this can help also I think.