What do I care about the size of vim ? My development box has got 1G of real memory, and vim is the most single important tool on that box ! All I care about is that it starts up fast enough, and it does what I need it to do (visual highlights with v, and multiple windows).
Heck, it's pretty small compared to what it does. If you want to look at people's development tools these days, have a look at eclipse.