If it is hard to make money offering a standard photography service, will a drone service (or any other value-add) increase demand and/or allow you to charge more? It will come down to assessing the investment versus the return. I still think you could do the drone option in the budget but you’d probably need to go down the Nikon or Canon route as has been suggested. Worth checking out the demand for wedding video services in general before investing. I noticed that Damien Mullen does photo-montages - video production of photo shoots basically which look pretty classy and catch the feel of the day well IMO. Stand out from the crowd if you want to be succesful in any business.