They are fun. And whatever original threads on them are ancient.
I saw some WH40K and WM kits on sale (5 whole dollars off!), and I know some local people that play both. I thought it would be fun to try.
I hear WM is better if you want a hardcore game, and WH40K is better if you want a hardcore hobby, yes? WM seems a lot cheaper too.
Whatever happened to MechWarrior? I remember that was huge at one point.
I havent played any tabletop wargames in a few years, but i used to be pretty regular at it. here is my take:
Warhammer Fantasy: expensive but mature and well written rule set. lots of minis on the board.
Warhammer 40K: still lots of minis on the board, but not nearly as many as in Fantasy. rules change drastacally at every edition and game balance swings like a pendilum as each codex is released. fun for a few years and GREAT fluff and character. eventually, even the hardcore get disinfranchised with it. also, not a very good wargame from a tactical perspective.
Speaking of GamesWorkshop games, theres a handfull of lesser-supported lesser-played games in their "Specialist Games" (check their website) section that dont get rules updates as often (or at all anymore) so arent as subject to drastic balance changes. they're generally written more for fun gameplay than selling fuck-tons of miniatures, so theyre not the mainline flagship games. you'll still find handfulls of dedicated players for games like Necromunda and Battlefleet Gothic and the like, even though theyre no longer the "big hits".
Battetech ("classic", as its called now): one of the grand-daddys of mech combat. silly sometimes, yes, but also a very mature rule set. lots of book keeping to play, and some of the newer releases have dumbed down the tactics by introducing high range and damage weapons, but its still pretty hardcore.
Heavy Gear: great potential, never caught on. fun to play, but good luck finding players.
Dirtside II and Stargrunt II: company level armor sim, and squad level infantry sim respectively. AWESOME rules, simple and fast to play while still being very detailed. also, good luck finding players. I think the rules are a free download from Ground Zero Games now.
Warmachine: all the kids are playing it, the minitures look cool, the fluf is well written, and the rules are good. dont need to go broke on massive armies either. probalby what i'd get into if i was to start playing these kinds of games again.
for Space games, theres the Battletech answer of "Aerotech" the Warhammer answer of "Battlefleet Gothic" the very well written and acclaimed "Full Thrust" (okay, i have a bit of a GZG chubby, i admit it), the grand daddy of them all, "Starfleet Battles" and tons of others. There was a great Tale-Spin (remember the cartoon?) style game called "Crimson Skies" or something like that... these kinds of games all have their own merrits and differences and deserve a topic to themselves.
I've seen some very sweet looking pre-painted miniatures for a sci-fi humans vs aliens kind of wargame thats made by a french company. cant remember the name of it, something like ST2 or RC2 or something like that. maybe the company name was something like Revolution ? dont know much about it.
There have been tons of WWII games over the ages. Flames of War seems to be the current darling, though I know nothing about it.
this is just kind of the tip of the iceburg. the big question is "what can you find players for" which you have to answer by dropping by your local game store, talking to your friends about what they want to play, or checking for local players over the interwebs..
have fun with your new moneypit! i mean timesink! i mean, HOBBY!