ayos ba to? to GAS or not to GAS! that is the question.... hehehe
Depends on a lot of factors:
1. PLAYER DYNAMICS - If the drummer has wide range of dynamics, from ultra fine buzz rolls, to ghost notes, to heavy hits (did I describe Dennis Chambers here?) you'll find out Drumagog will simply KILL those dynamics. So unless killing the dynamics is what you're after then you're ok with drumagog.
2. MULTISAMPLE AVAILABILITY - If you don't have much GOG multi-samples (kung baga eto ang font ng drumagog), you have less options. The stock version for me is quite limiting.
3. THE 3-ZONE SNARE PROBLEM - While most advanced electronic snare triggers have 3 different trigger zones (i.e. rim, center and edge), drumagog is completely deaf to these areas. It can't tell whether you're doing rim shots or rim clicks. So you have to do serious dicing and slicing before you slap it in to drumagog. Drumagog has "positional multisampling" but I don't hear much difference.
4. DUCKING PROBLEMS - Drumagog claims that it can do AUTODUCKING (pretty much like sidechain compression) but fails to do that effectively. Say you have a snare track and you want to apply autoducking to a hihat track. What happens is the hihat track should be able to trigger a sampled snare sound whenever the snare track triggers a sample.
Anyway, I still think drum replacement is the cheapest alternative to having a multitude of drumkits. Damn I hate the production values in this country.