Jeromio,
You must be getting a good deal on gauges where you can get a speedometer/odometer, tachometer, fuel gauge, oil pressure gauge, voltmeter, and water temperature gauge along with any necessary senders for around $250. What kind are you using? Also, what have you done to replace the turn signal indicators that are on the stock speedometer?
I guess since the cost is about the same I made the right decision for me though. I wanted to have a very OEM look and most of the gauge conversions I have seen have looked very "after market". I also didn't want the additional effort of identifying additional gauge locations, manufacturing the housing and then wiring them in to make up for the double OEM gauges. This is all opinon though and each person has to do what they prefer for their specific goals. It all depends on whether you're going for a fully custom look and wanting to change everything - Maichor is a great example there with his Vela Rossa configuration - or just a drivetrain swap which is what I went for - or something in between.