Can you give me advice on buying a telescope?
It relies on upon (a) what sort of watching you will do and (b) what your financial plan is. If you plan to watch the Moon/planets, then get a refracting telescope.Otherwise get a reflecting telescope. If you will be doing astrophotography, then get a Schmidt Cassegrain telescope. If your point is to get the biggest opening for your cash, then most likely the best decision is the Dobsonian.