@StevenJGore:
Have you ever tried an external SD/FF? The image quality is just slightly inferior to internal ones, and it's hardly noticeable. You really need to stare at the image for a minute or two in order to say, mmhmmm, yep, it's slightly worse display quality than my internal SD/FF. They do get warm, but it's nothing too terrible. Certainly there are no major overheating issues, or anything like that.
For the price of one external SD/FF module you are getting VGA output on basically every Amiga unit in your household (not at the same time of course), as you are able easily switch it between your A500, A2000, A1200, etc., instead of the internal one, which can be used on AGA units only, and is not easily interchangeable between units.
If I only had one Amiga, and if it were AGA, and if it were towered, then yes, I'd go for the internal version. Since I own a lot of Amigas...the external SD/FF seems like a better/more flexible solution.