I would definitely drive one and consider it. It is a wee bit smaller than the 06-10 Miata but I think the power to weight ratio is perfect and the sky is the limit when it comes to mods.
MSMs can be had for short money and they offer a lot. Thinks to condier when buying an MSM, look for mods, like most cars, try to avoid them unless they have been tastefully done. The "GT" package was the big option for MSMs it designates leather seats and cloth top (GT) vs cloth seats and vinyl top (non-GT). There doesn't appear to be a large difference in used pricing between the two. They come in four colors:
2004 - Velocity Red and Titanium
2005 - Velocity Red, Titanium, Black Mica and Lava Orange Mica.
The factory burned limiting production for the '05s to less than half of the planned run. Check my Cardomain for pics and vids.