henbane said I think handbags are like shoes - either they enthuse you & are something worth treating yourself to, or you can't see the point & just buy something practical that will do the job.
I think you are very wise henbane! 
Afraid I'm a bit smitten by both!
I've only paid full price for a handbag about 3 times in my life. A special Christmas present for my Mum the first year I was working, and one for both my daughters' weddings. For more "normal" use I trawl the end of season sales, and now probably have enough handbags to see me out!
But I'm sure I could be tempted by a good deal! But the most expensive bag I bought was about £125 - daughter's wedding - a Radley bag - which is rather less than the cost of the Hulanicki bag quoted in OP.
I too like Tula bags, but it's been a while since I bought one. I found that I just wrecked them really quickly as I cart so much stuff around! Though I do still have a small across body one still, it''s only big enough for purse, small wallet, small comb and a lippie really, so it hardly ever gets used!
Used to loath shoes - have short fat feet, and it used to be so difficult to find anything to fit. Over the years my shoe size has gone up - used to be size 4, but now size 6. I can't walk in heels any more (can barely walk at all actually) but have one very nice pair of black lace ups with a tiny heel for posh. Have discovered some different places to buy flat shoes from that ain't cheap if you buy full price, but just wait for the sales! I've had random men compliment me in museum shops (and me in wheelchair!) on some shoes from H by Hudson. That I got for £20 a few years ago in a sale.
Trouble is I do like to have handbags that match or tone with my shoes... So new shoes sometimes means new handbag - any excuse LOL!