Zem, I do believe you are one of the few people who regularly posts in both the Alpha Strike and now the BattleForce forums.
It is because of how similar that BF-2 and BF-3 are to each other, and the fact I already had BF-3 rules in my Strat Ops PDF that I held off getting Interstellar Ops until now.
Really, I bought Interstellar Ops to see if I was truly missing out or not. I kind of knew that the BF-3 game was going to be the same.
But, it really is the lack of an included unit list that tanks the newer games for me.
I also firmly believe in retro gaming. Hell, I recently bought two copies of the original "all-in-one" rulebook for normal BattleTech called The BattleTech Manual (product code 1626). It was the first time that BattleTech, CityTech, and AeroTech were compiled together.
Why did I buy that? I don't really like the bloat of the new games, with quad proto-mechs armed with gatling plasma guns that fire out variable ammunition types (its a joke, no need to correct me). Other than how partial cover works, the rules really are pretty similar to how you play today.
I think the same of the new BattleForce games. I do see how bizarre that BF-1 is, but BF-2 to BF-3, and now Alpha Strike all seem to be the same game, more or less. And I am the guy who thinks about the "less" side of that equation. I would rather have rules that are easy to play instead of the current edition.
BF-2 seems like the best option for me because of how I like to game.
And really, I have to say it again, the fact that BF-2 includes the stats for the war machines in the rulebook is a big plus. That one is a big standout for me. I don't like looking things up in a website, or owning a box of playing cards to search thru to get the stats for the one thing I'm looking for.
I don't think that new games do it better than old ones. Thankfully BattleTech has barely changed since its inception.