If you want one guy's honest opinion, if I had $700 burning a hole in my pocket right now, I would use it to originate a $3000 personal loan, payable over 36 months, and either:
1.) Buy a good to excellent condition M1 Garand. For any portion of the $3000 you have left, invest it in Coca-Cola Company common stock (or any long-established company, for that matter). Set up your dividend payout to re-invest half, so your payout increases continuously.
or
2.) Use the loan to purchase a pistol from CZ Custom. See #1 for any money left over.
Edit: I realized today, that I didn't per se answer the question...oops. So, no, I wouldn't buy a Hudson H9.